Ali Baklouti

Previous And Current Research Students.

About me.

Academic service

Appointments

  • Professor

    Faculty of Sciences of Sfax
    2004
  • Associate Professor

    Faculty of Sciences of Sfax
    2004 1999
  • Assistant Professor

    Faculty of Sciences of Sfax
    1999 1998
  • A.T.E.R

    University of Metz (France)
    1997 1995

Research Interests

  • Harmonic analysis on homogeneous spaces.


    Representation theory of solvable Lie groups.


    Fourier analysis and uncertainty principles.


    Deformation of discontinuous groups and related problems.

Publications.

  • All
  • Scientific Publications
  • Survey Papers
  • Books

[1] A. Baklouti: Le Cortex en dimension six. Publication du centre universitaire de Luxembourg. Fascicule V, 1993(7 - 45).

[2] A. Baklouti: On the Cortex of connected Simply connected Nilpotent Lie Groups. Russ. J. Math. Physics. Volume 5, Number 3. 1997(281-294).

[3] A. Baklouti, J. Ludwig et M. Selmi: Séparation des représentations unitaires et irréductibles des groupes de Lie nilpotents. Lie Theory and its applications in Physics. Volume 2. 1997 (75-91).

[4] A. Baklouti: Nouvelle désintégration lisse de L2(G) pour les groupes résolubles exponentiels. Journal of Lie Theory. Volume 8.1998 (1-26).

[5] A. Baklouti et J. Ludwig: Désintégration des représentations monomiales des groupes de Lie nilpotents. Journal of Lie Theory. Volume 9. N 1. 1999(157-191).

[6] A. Baklouti: Harmonic Analysis On Invariant Differential Operators On Nilpotent Homogenous Spaces. Russ. J. Math. Physics. Volume 6, N 2.1999(125-136).

[7] A. Baklouti and J. Ludwig: The Penney-Fujiwara Plancherel Formula for nilpotent Lie groups. J. Math. Kyoto Univ. Volume 40, N 1. 2000.

[8] D. Arnal, A. Baklouti, J. Ludwig and M. Selmi: Separation of Unitary representations of exponential solvable Lie groups. Journal of Lie Theory. Volume 10. N 2. 2000(399-410).

[9] A. Baklouti et J. Ludwig: Entrelacement des restrictions des représentations unitaires des groupes de Lie nilpotents. Annales de L'institut Fourier. Grenoble, Volume 51, N 2, 2001(1-35).

[10] A. Baklouti, C. Benson and G. Ratcliff: Moment Separation of the unitary dual of nilpotent Lie Groups. Journal of Lie Theory. Volume 11. N 1, 2001(153-154).

[11] A. Baklouti and J. Ludwig: Invariant Differential Operators On Certain Nilpotent Homogeneous Spaces. Monatshefte für Mathematik, Volume 134, N 1, 2001(19-37).

[12] A. Baklouti and H. Fujiwara: Harmonic Analysis on some Exponential Homogeneous Spaces. Research and Exposition in Math, Volume 25, N 1, 2001(127-134).

[13] A. Baklouti and H. Hamrouni: On the Down-Up Representations of Exponential Solvable Lie Groups. Russ. J. Math. Physics. Volume 8, N 4, 2001(422-432).

[14] A. Baklouti, A. Ghorbel et H. Hamrouni: Sur Les Représentations Mixtes Des Groupes de Lie Résolubles Exponentiels. Publ. Mat. Volume 46, 2002(179-199).

[15] A. Baklouti, J. Ludwig and K. Smaoui: Estimate of the Lp -Fourier transform norm of Nilpotent Lie Groups. J. Funct. Anal. 199, 2003(508-520).

[16] A. Baklouti et H. Fujiwara: Opérateurs Différentiels Associés à Certaines Représentations Unitaires des Groupes de Lie Résolubles Exponentiels. Compositio. Math. Volume 139, 2003(29-65).

[17] A. Baklouti and H. Fujiwara: Commutativité de l’algèbre des Opérateurs différentiels sur l’espace des représentations restreintes des groupes de Lie nilpotents. J. Math. Pures. Appl. Volume 83, 2004(137-161).

[18] A. Baklouti, N. Ben Salah and K. Smaoui: Some uncertainty principles for nilpotent Lie groups. Contemporary Mathematics. Volume 363, 2004(39-52).

[19] A. Baklouti, H. Fujiwara and J. Ludwig: Analysis of Restrictions of Unitary Representations of a Nilpotent Lie Group. Bull. Sci. Math. Volume 129, Issue 3, 2005, (187-209).

[20] A. Baklouti, S. Dhieb et D. Manchon: Déquatification des orbites coadjointes et variétés caractéristiques. J. Geo. Physics. Volume 54, N 1, 2005 (1-41).

[21] A. Baklouti and F. Khlif: Proper actions on some exponential solvable homogeneous spaces. Int. J. Math. Volume 16, N 9, 2005 (941-955).

[22] A. Baklouti and N. Ben Salah: The Lp-Lq Version of Hardy’s Theorem on nilpotent Lie groups. Forum Mathematicum. Volume 18, 2006 (245-262).

[23] A. Baklouti, H. Hamrouni and F. Khlif: Analysis of some monomial representations of exponential solvable Lie groups. Russ. J. Math. Physics. Volume 13, N 4, 2006 (363-379).

[24] A. Baklouti, J. Ludwig, L. Scuto and K. Smaoui: Estimate of the Lp-Fourier Transform Norm on Strong *-Regular Exponential Solvable Lie Groups. Acta. Math. Sinica. Volume 23, N 8, 2007 (1173-1188).

[25] A. Baklouti and F. Khlif: Weak proper actions on solvable homogeneous spaces. Int. J. Math. Volume 18, N 8, 2007 (903-918).

[26] A. Baklouti and H. Hamrouni: The multiplicity function of mixed representations on Completely solvable Lie groups. Tokyo. J. Math. Volume 30, N 1, 2007 (41-55).

[27] A. Baklouti and K. Tounsi: On the Benson-Ratcliff invariant of coadjoint orbits on nilpotent Lie groups. Osaka. J. Math. Volume 44, 2007 (399-414).

[28] A. Baklouti and N. Ben Salah: On Theorem of Beurling and Cowling-Price for certain nilpotent Lie groups. Bull. Sci. Math. Volume 132, No. 6, 2008 (529-550).

[29] A. Baklouti and E. Kaniuth: On Hardy's uncertainty principle for connected nilpotent Lie groups. Math. Z. Volume 259, No. 2, 2008 (233-247 ).

[30] A. Baklouti, I. Kédim and T. Yoshino : On the deformation space of Clifford-Klein forms of Heisenberg groups. Int. Math. Res. Not. IMRN (2008), no. 16, 35 pp.

[31] A. Baklouti and I. Kédim: On the deformation space of Clifford-Klein forms of some exponential solvable homogeneous spaces. Int. J. Math. Vol 20, Issue 7, 2009(817-839

[32] A. Baklouti, J. Ludwig and H. Fujiwara: A variant of Frobenius reciprocity for restricted representations on nilpotent Lie groups. Infinite dimensional harmonic analysis IV. Hackensack, NJ: World Scientific. 13-31 (2009).

[33] A. Baklouti: Deformation of discontinuous subgroups acting on some nilpotent homogeneous spaces. Proc. Japan Acad., 85, Ser. A. No. 4. (2009) 41-45.

[34] A. Baklouti and E. Kaniuth : On Hardy's uncertainty principle for solvable locally compact groups. J. Fourier Anal. Appl. 16, No. 1, 129-147 (2010).

[35] A. Baklouti and F. Khlif: Deforming discontinuous subgroups for threadlike homogeneous spaces. Geometria Dedicata. Vol 146, 117-140 (2010).

[36] A. Baklouti and I. Kédim : On non-abelian subgroups acting on exponential solvable homogeneous spaces. Int. Math. Res. Not. 2010, No. 7, 1315-1345 (2010).

[37] A. Baklouti and S. Thangavelu : Variants of Miyachi’s Theorem on Nilpotent Lie groups. J. Aust. Math. Soc. 88, No. 1, 1-17 (2010).

[38] F. Abdelmoula and A. Baklouti: The Lp-Lq-version of Morgan’s Theorem for exponential solvable Lie groups. Math. Notes. 88, No. 4, 464-478 (2010).

[39] A. Baklouti and J. Inoue: Estimate of the Lp-Fourier transform norm for connected nilpotent Lie groups. Adv. Pure. Appl. Math. 2, No. 3-4, 467-483 (2011).

[40] A. Baklouti, S. Dhieb, D. Manchon: A deformation approach of the Kirillov map for exponential groups. Adv. Pure Appl. Math. 2, No. 3-4, 421-436 (2011).

[41] A. Baklouti: On discontinuous subgroups acting on solvable homogeneous spaces, Proc. Jap. Academy, 87, Serial A. 87, No. 9, 173-177 (2011).

[42] A. Baklouti, S. Dhieb and K. Tounsi: When is the deformation space T (?,H2n+1,H) a smooth manifold, Int. J. Math. Vol. 22, No. 11 (2011) 1–21.

[43] A. Baklouti, F. Khlif and H. Koubaa. On the geometry of stable discontinuous subgroups acting on threadlike homogeneous spaces. Math. Notes, Volume 89, Numbers 5-6, 761-776(2011).

[44] A. Baklouti and J. Inoue: Estimate of the Lp-Fourier transform norm for connected nilpotent Lie groups. Adv. Pure Appl. Math. 2, No. 3-4, 467-483 (2011).

[45] L. Abdelmoula, A. Baklouti and I. Kédim: The Selberg-Weil-Kobayashi local rigidity Theorem for exponential Lie groups. Int. Math. Res. Not. No. 17, 4062-4084 (2012).

[46] A. Baklouti, N. ElAloui and I. Kédim. A rigidity Theorem and a Stability Theorem for two-step nilpotent Lie groups. J. Math. Sci. Univ. Tokyo 19 (2012), 1–27.

[47] A. Baklouti and I. Kédim. On the local rigidity of discontinuous groups for exponential solvable Lie groups. Adv. Pure. Appl. Maths. 4, No. 1, 3-20 (2013).

[48] F. Abdelmoula, A. Baklouti and D. Lahiani: The Lp-Lq-version of Miyachi’s Theorem for nilpotent Lie groups and sharpness problems. Math. Notes. 94, Issue 1-2, 3-19 (2013).

[49] A. Baklouti, J. Ludwig and H. Fujiwara: La formule de Penney-Plancherel des restrictions à multiplicités finies des groupes de Lie nilpotents. Adv. Pure Appl. Math. 4, No. 1, 21-40 (2013).

[50] A. Baklouti and I. Kédim. Open problems in deformation theory of discontinuous groups acting on homogeneous spaces. Int. J. Open Problems Comput. Math. , Vol. 6, No. 1, 2013, 115-131.

[51] S. Azouazi, A. Baklouti and M. Elloumi: Some uncertainty principles like Miyachi, Cowling-Price and Morgan, on compact extensions of Rn. Indian. J. Pure . App. Maths. Volume 44, Issue 5, pp 587-604 (2013).

[52] S. Azouazi, A. Baklouti and M. Elloumi: A generalizaton of Hardy's uncertainty principle on compact extensions of Rn. Annali. Math. Pura. Applicata. Ann. Mat. Pura Appl. (4) 193 (2014), no. 3, 723–737.

[53] A. Baklouti and J. Inoue: Estimate of the Lp-Fourier transform norm of compact extensions. Forum. Math. 26 (2014), no. 2, 621--636.

[54] A. Baklouti, J. Ludwig and H. Fujiwara: Intertwining Operators of irreducible representations for Exponential Solvable Lie groups. Forum. Math. 27 (2015), no 4, 2231-2257.

[55] A. Baklouti, S. Ghaouar, F. Khlif: Deforming discontinuous subgroups of reduced Heisenberg groups. Kyoto J. Math. 55 (2015), no. 1, 219–242.

[56] A. Baklouti, S. Ghaouar, F. Khlif: On discontinuous groups acting on $(\Bbb{H}_{2n+1}^r\times\Bbb{H}_{2n+1}^r)/\Delta$. Adv. Pure Appl. Math. 6 (2015), no. 2, 63–79.

[57] A.M. A. Alghamdi, A. Baklouti: A Beurling theorem for exponential solvable Lie groups. J. Lie Theory 25 (2015), no. 4, 1125–1137.

[58] S. Azaouzi, A. Baklouti, S. Ben Ayed: Variants of Müntz-Szàsz analogs for Euclidean spin groups. Math. Notes 98, No. 3, 367-381 (2015).

[59] A. Baklouti, D. Lahyani: Some uncertainty principles for diamond Lie groups. Adv. Pure Appl. Math. 6 (2015), no. 4, 199–213.

[60] A. Baklouti, N, ElAloui and I. Kédim. The Selberg-Weil-Kobayashi rigidity Theorem. The rank one solvable case. Int. J. Math, vol 27. no 10 (2016).1650085, 23 pp.

[61] A. Baklouti and S. Bejar. On the Calabi-Markus phenomenon and a rigidity theorem for Euclidean motion groups. Kyoto. J. Math. 56, N°2. (2016), 325-346.

[62] A. Baklouti and S. Bejar. Variants of stability of discontinuous groups for Euclidean motion groups. Int. J. Math. 28, No. 6, 26 p. (2017).

[63] A. Baklouti, M. Boussoffara and I. Kedim. Stability of Discontinuous Groups Acting on Homogeneous Spaces. Mathematical Notes, (2018), vol. 103, no. 4, pp. 9-22 .

[64] A. Baklouti and S. Thangavelu: Hardy and Miyachi Theorems for Heisenberg motion groups. Nagoya. Math. Journal, 229 (2018), 1-20.

[65] L. Abdelmoula, A. Baklouti and Y. Bouaziz: On the generalized moment separability theorem for type 1 solvable Lie groups. Adv. Pure. Appl. Math. 9(4): 247-277(2018).

[66] A. Baklouti, S. Bejar and Ramzi Fendri. A local rigidity Theorem for finite actions on Lie groups and application to compact extensions of Rn. Kyoto J. Math. 59, No. 3, 607-618 (2019).

[67] A. Baklouti, M. Bossofora and I. Kedim: Deformation problems on three-step nilpotent Lie groups. Hiroshima Math. J. 49, No. 2, 195-233 (2019).

[68] A. Baklouti, H. Fujiwara and J. Ludwig: The polynomial conjecture for restrictions of some nilpotent Lie groups representations. J. Lie Theory 29, No. 2, 311-341 (2019).

[69] A. Baklouti, H. Fujiwara and J. Ludwig: Monomial representations of discrete type of an exponential solvable Lie group. Springer Proceedings in Mathematics & Statistics 290(2019), 1–55.

[70] Baklouti, Ali; Ghaouar, Sonia; Khlif, Fatma A stability theorem for non-abelian actions on threadlike homogeneous spaces. Springer Proc. Math. Stat, 207(2017), 117–135.

[71] A. Baklouti, S. Dhieb and D. Manchon: The Poisson characteristic variety of unitary irreducible representations of exponential Lie groups. Springer Proceedings in Mathematics & Statistics 290(2019), 207–217.

[72] A. Baklouti, S. Bejar and K. Dhahri: Deforming discontinuous groups for Heisenberg motion groups. Int. J. Math. 30, No. 9, 23 p. (2019). https://doi.org/10.1142/S0129167X19500459

[73] Azaouzi Salma, Ali Baklouti and Mounir Elloumi. A generalized Beurling's Theorem for some Lie groups. Mathematical Notes. 107, 42–53 (2020).

[74] Ali Baklouti and Junko Inoue: The $L^p$-Fourier transform norm on compact extensions of locally compact groups. Journal of Fourier Analysis and Applications. 26, 26 (2020). https://doi.org/10.1007/s00041-020-09739-5

[75] Ali Baklouti and Mahmoud Filali: Beurling’s Theorem on locally compact abelian groups. De Gruyter Proceedings in Mathematics 2020. To appear. https://doi.org/10.1515/futur-2012-0001

[76] Ali Baklouti and Sabria Benayed. Müntz-Szàsz analogues for compact extensions of Heisenberg groups. Proceedings - Mathematical Sciences. Springer (2021). To appear.

March 1994 (Monastir, Tunisie): Deuxième Colloque de la Société Mathématique de Tunisie. "Opérateur d'entrelacement des représentations monomiales des groupes de Lie nilpotents".

August 1994 (Moscou, Russia): Participation au Congrès International de Mathématiques à Moscou organisé par l'International Sophus Lie Centre et la Russian Independant University. " On the cortex of two and three steps nilpotent Lie groups".

October 1995 (Luxembourg): Centre Universitaire de Luxembourg. "Méthode d'orbites et désintégration des représentations unitaires des groupes de Lie nilpotents".

June 1996 (Metz, France): Colloque Metz-Nancy-Strasbourg. " Sous-groupes de Kazdhan et moyennes invariantes sur la sphère".

February 1997 (Luxembourg): Centre Universitaire de Luxembourg. "Analyse multirésolution, bases orthonormées et bases de Riesz".

June 1997 (Poitiers, France): Colloque en l'honneur de Pierre Bernat, Université de Poitiers."Séparation des représentations unitaires des groupes de Lie nilpotents".

February 1998 (Paris, France): Paris 7, Jussieu. "Analyse harmonique sur les espaces homogènes exponentiels".

June 1998 (Leiden, Pays Bas): Leiden University, The Netherlands, ESGT 98/ European School in Group Theory. "Harmonic Analysis for Certain Monomial Representations of an Exponential Solvable Lie Group".

March 1999 (Tabarka, Tunisia): Colloque de la Société Mathématique de Tunisie. "Frobenius reciprocity and differential operators on certain solvable homogeneous spaces.”

April 1999 (Las Vegas, U.S.A): Sectional Meeting of the American Mathematical Society, Las Vegas (U.S.A)."Generalized Moment Sets and Unitary Representations of Exponential Solvable Lie Groups ".

April 1999 (Saint-Louis, U.S.A): The Department of Mathematics and Computer Science. The University of Saint Louis at Missouri.

February 2000 (Monastir, Tunisia): "Opérateurs Différentiels sur l’espace de la restriction d’une représentation unitaire d’un groupe de Lie résoluble exponentiel ".

July 2000 (Barcelone, Spain): European Congress of Mathematics: "Differential Operators on the Space of a Unitary Representation of Exponential Lie Groups".

July 2000 (Vigo, Spain): First Colloquim on Lie Theory and applications: "Harmonic Analysis on Some Exponential Solvable Homogeneous Spaces".

August 2000 (Odense, Danemark): European School in Group Theory and Plancherel Formula: " The Penney-Fujiwara-Plancherel Formula of Nilpotent Lie Groups ".

March 2001 (Hammamet, Tunisia): SMT 2001. " Analyse Harmonique sur les Espaces homogènes Exponentiels ".

October 2001 (Luxembourg): "Estimation de la norme de la transformée de Fourier Lp sur les groupes résolubles ".

October 2001 (Nancy, France): " Estimation de la norme de la transformée de Fourier Lp sur les groupes de Lie nilpotents ".

October 2001 (Metz, France): "Commutativité des sous-algèbres dans l’algèbre enveloppante d’un groupe de Lie nilpotent ".

August 2002 (Bejing, China): International Congress of Maths, ICM 2003: "Differential operators on the space of restricted representations on nilpotent Lie groups".

December 2002 (Clermont Ferrand, France): "Multiplicités des Représentations mixtes des groupes de Lie complètement résolubles".

February 2003 (Vienna, Austria): International workshop on Idempotent Mathematics and dequantization. "Dequantization of coadjoint orbits: Moment sets and Characteristic varieties".

August 2003 (Edmonton, Canada): Banach Algebra 2003. " The Cowling-Price Theorem for Nilpotent Lie Groups ".

September 2003 (Munich, Germany): GSF-International workshop on Uncertainty priciples. GSF-International workshop on Uncertainty priciples. " Some Uncertainty principles on Nilpotent Lie Groups ".

September 2003 (Sfax, Tunisia): Troisièmes Journées d’Analyse harmonique. : " Sur Certains Principes d’incertitude sur les groupes de Lie Nilpotents ".

October 2003 (Luxembourg): " Le Théorème de Cowling-Price sur les groupes de Lie Nilpotents ".

December 2003 (Clermont Ferrand, France): " Le Théorème de Cowling-Price sur les groupes de Lie Nilpotents ".

June 2004 (Escorial, Spain): " Some Uncertainty principles and Harmonic Analysis on Nilpotent Lie Groups ".

July 2004 (Istanbul, Turkey): " Differential Operators on the space of a Restricted Representation on Nilpotent Lie groups ".

November 2004 (Awajishima, Japan): "Weak proper actions on exponential homogeneous spaces ".

April 2005 (Munich, Germany): "Some uncertainty principles on NPC nilpotent Lie groups".

May 2005 (Dijon, France): "Sur les actions propres sur les espaces homogènes nilpotents".

June 2005 (Kiel, Germany): "Some uncertainty principles on NPC nilpotent Lie groups".

April 2006 (Paderborn, Germany): "The Cowling-Price Theorem on 2-NPC nilpotent Lie groups".

July 2006 (Istanbul, Turkey):"Weak proper actions on solvable homogeneous spaces ".

September 2006 (Clermont-Ferrand, France):"Actions faiblement propres sur les espaces homogènes exponentiels".

December 2006 (Dijon, France): "Actions faiblement propres sur les espaces homogènes résolubles".

February 2007 (Kyushu, Japan): "Proper and weak proper actions on solvable homogeneous spaces ".

February 2007 (RIMS-Kyoto, Japan): "Some uncertainty principles on nilpotent Lie groups ".

May 2007 (Oujda, Morocco): "Opérateurs d’entrelacement des representations monomiales des groupes de Lie nilpotents".

September 2007 (Metz, France): "Harmonic Analysis on monomial representations of a nilpotent Lie groups ".

November 2007 (Dijon, France): "Harmonic Analysis on monomial representations of a nilpotent Lie groups ".

December 2007 (Hong-Kong): "Deformation spaces of an action of discontinuous subgroups on nilpotent homogebeous spaces ".

April 2008 (Paderborn, Germany): "Deforming discontinuous subgroups on homogeneous spaces".

June 2008 (Elescorial, Spain): "On Hardy’s Theorem on connected nilpotent Lie group".

August 2008 (Bangalore, India) (two lectures): "General Uncertainty principles on solvable Lie groups ".

November 2008 (Luminy, Marseille):"The deformation spaces of the action of discontinuous subgroups acting on solvable homogeneous spaces".

November 2008 (Atami, Japan):"The deformation spaces of the action of discontinuous groups acting on solvable homogeneous spaces ".

February 2009 (Kyushu, Japan): "Rigidity property of deformations on nilpotent Lie groups ".

April 2009 (Kénitra, Morocco): "Description de l’espace de deformation des actions des groupes discontinus".

July 2009 (Casablanca, Morocco): "Sur certains principes d’incertitude pour les groupes de Lie nilpotents".

December 2009 (Taiwan): "The Plancherel Theorem of monomial representation of exponential discrete type".

March 2010 (SMT, Sousse): "Some uncertainty principles on solvable Lie groups".

July 2010 (Oulou, Finland): "On sharpness problems of some uncertainty principles on nilpotent Lie groups".

June 2011 (Luxembourg): "Estimate of the Fourier transform norm on some Lie groups".

June 2011 (China): "Some uncertainty principles on certain Lie groups".

March 2012 (HRI, India): "The representation theory of nilpotent Lie groups". (Four lectures)

September 2012 (MIMS, Tunis): "The theory of discontinuous subgroups acting on homogeneous spaces".

October 2012 (Nice, France): "On the geometry of discontinuous subgroups acting on homogeneous spaces".

November 2012 (Tokyo): "On the geometry of discontinuous subgroups acting on solvable homogeneous spaces".

November 2012 (Tokyo): "Some aspects of the deformation theory of discontinuous subgroups of solvable homogeneous spaces".

Decemmber 2012 (Sousse) :"Harmonic analysis on monomial representations of exponential solvable Lie groups".

January 2013 (Kyushu, Japan): "Harmonic analysis on monomial representations of discrete type of exponential solvable Lie groups".

April 2013 (Clermont-Ferrand, France): "Sur les representations de type discret des groups de résolubles exponentials".

Mai 2013 (Granada, Spain): "On the $L^p-$Fourier transform norm on some Lie groups".

February 2014 (Tsukuba): "On the Fourier transform on some Lie groups".

February 2014 (Kyushu, Japan): "On the theory of deformation of discontinuous actions on homogeneous spaces".

December 2014 (Marrakech, Morocco): "On the Lp-Fourier transform norm on some Lie groups".

January 2015 (Hammamet, Tunisia): "On the Fourier transform on some Lie groups".

August 2015 (Halifax, Canada): "On the Lp-Fourier transform norm on some Lie groups".

December 2015 (New Delhi): "Estimate of the Lp-Fourier transform norm on certain Lie groups".

February 2016 (Tsukuba, Japan): "Some uncertainty principles on certain Lie groups ".

September 2016 (Tsukuba, Japan): "Hardy’s theorem on Lie groups".

January 2017 (Tottori, Japan): "Monomial representations of discrete types for certain exponential Lie groups ".

July 2017 (Oberwolfach, Germany): "On the Lp-Fourier transform norm for some solvable Lie groups and their compact extensions". https://www.mfo.de/occasion/1730/www_view

January 2018 (Bilbao, Spain):“Some uncertainty principales on solvable Lie groups and their compact extensions” https://sites.google.com/site/uncertainty2018/

February 2018 ((The Tunisian Academy of Sciences, letters and Arts: Beit al HikmaTunisian Academy of Sciences, Letters and Arts: Beit Elhikma): "L'infini". http://www.beitalhikma.tn/conference-linfinijeudi-22-fevrier-201816h00/?lang=fr

March 2018 (TEM2018: Ibn Tofail, Kenitra Morocco): "On the L^p Fourier Transform on some Lie groups". http://ensa.unit.ac.ma/tem2018

May 2018 (Casablanca, Morocco). Harmonic Analysis and Integral Geometry: "A full generalized version of Hardy's Theorem on nilpotent Lie groups".

June 2018 (20-23, University of Haute Alsace, Mulhouse, France): Algebra and Lie Theory Conference. "Monomial representations of discrete type and differential operators". http://www.math.uha.fr/webALT18/home.html

September 2018 (Rabat, Morocco). Académie Hassan II des Sciences et Techniques: Mathématiques, Applications et Interactions avec la Physique: Quelques propriétés de la transformée de Fourier sur certains groupes de Lie.

October 2018 (IHES, PARIS-SACLAY, https://www.ihes.fr/): "On the deformation theory of discontinuous groups acting on solvable homogeneous spaces" https://indico.math.cnrs.fr/event/3969/

October 2018 (Metz, Université de Lorraine, France): "C'est quoi l'analogue du Théorème de Müntz-Szász pour un groupe de Lie?" Théorie de Lie, Géométrie et Analyse (LieGA): http://www.iecl.univ-lorraine.fr/Les-Seminaires/LieGA/

October 2018 (Journées SL2(R) à Reims): "Does "ax+b" stand for the solvable analogue of SL2(R) in deformation theory ?" https://indico.math.cnrs.fr/event/3782/overview

October 2018 (Laboratoire de Mathématiques Blaise Pascal, Clermont-Ferrand): "Représentations monomiales des groupes de Lie exponentiels et opérateurs différentiels" http://recherche.math.univ-bpclermont.fr/seminaires/gt_gaao.php

December 2018 (Graduate School of Mathematical Sciences, University of Tokyo): "Monomial representations of discrete type and differential operators": https://www.ms.u-tokyo.ac.jp/seminar/2018/sem18-268_e.html

December 2018 (Faculty of Mathematics, Kyushu University, Japan): "Müntz-Szàsz analogues for some compact extensions of nilpotent Lie groups".

February 2019 (Graduate School of Mathematics, Nagoya, Japan): "Harmonic analysis on monomial representations of exponential Lie groups and a counterexample to Duflo’s Conjecture": http://www.math.nagoya-u.ac.jp/en/research/calendar/data/1547169713-98.html

April 2019 (Marrakech, Morocco, In memory of Ahmad Intissar): "Harmonic analysis around monomial representations of exponential Lie groups": https://icmmp2019.doodlekit.com/

April 2019 (American University of Sharjah, UAE. Department of Mathematics and Statistics): "Branching laws of some unitary representations of exponential Lie groups and related differential operators algebras".

April 2019 (New York University Abu Dhabi, UAE): "Some problems related to Fourier analysis on solvable Lie groups and their compact extensions".

July 2019 (Winnipeg, Canada): Banach Algebra 2019. "Some uncertainty principles on nilpotent Lie groups (in memory of Eberhard Kaniuth)": https://server.math.umanitoba.ca/~banach2019/

October 2019 (Errachidia, Morocco): Workshop on Harmonic Analysis and Integral Geometry with Applications. "Sharpness problems related to some uncertainty principles on nilpotent Lie groups": https://whaiga2019.sciencesconf.org/resource/page/id/13

July 2020 (Tunis): GTT 1 : Geometry and Topology in Tunisia I. "Est ce que la géométrie des orbites coadjointes serait derrière une preuve de la conjecture polynomiale des restrictions nilpotentes?" https://www.mims-institut.org/events/

[1] A. Baklouti: Dequantization of co-adjoint orbits : Moment Sets and characteristic varieties. Contemporary Mathematics. Volume 377, 2005 (79-91).

[2] A. Baklouti: Analogues to some uncertainty principles on certain solvable Lie groups. Adv. Pure Appl. Math. 3, No. 3, 265-279 (2012).

[3] A. Baklouti: On the $L^p$-Fourier transform norm for certain Lie groups. Analysis, geometry and representations on Lie groups and homogeneous spaces, 13–22, Sem. Math. Sci., 39, Keio Univ., Yokohama, 2016.

• 1998 and 2000: University of Metz (France). (By Professor Jean Ludwig).

• 1999: Saint-Louis, Missouri, USA. The Department of Mathematics and Computer Sciences. (By Professors Chal Benson and Gail Ratcliff).

• 2001 : University of Nancy (France). Institut Henri Poincaré. (By Professor Dominique Manchon, Project CNRS-DGRST).

• 2002: University of Kinki, Fukuoka, Japon. Institute of Technology. (By Professor Hidenori Fujiwara).

• 2002 and 2003 : University of Clermont-Ferrand (France). University Blaise Pascal. (By Professor Dominique Manchon, Project CNRS-DGRST).

• 2004 : RIMS, Kyoto. (By Professor Toshiyuki Kobayashi).

• 2006: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon, Project CNRS-DGRST).

• 2006: University of Paderborn (Germany). (By Professor Eberhard Kanuith).

• 2007: University of Kinki, Fukuoka, Japan. Institute of Technology. (By Professor Hidenori Fujiwara).

• 2007: RIMS, Kyoto. (By Professor Toshiyuki Kobayashi).

• 2007 : Max-Planck Institute. Bonn, (Germany). (By Professor Bernhard Krötz).

• 2007: Universities of Clermont-Ferrand and Bourgogne. (By Professors Dominique Manchon and Didier Arnal).

• 2007: University of Luxembourg. Département de Mathématiques. (By Professor Carine Molitor-Braun).

• 2008: University of Paderborn (Germany). (By Professor Eberhard Kanuith).

• 2008: Indian Institute of Science, Bangalore (India). (By Professor Sunduram Thangavelu).

• 2008: Universities of Clermont-Ferrand and Bourgogne. (By Professors Dominique Manchon and Didier Arnal).

• 2009: University of Kinki, Fukuoka, Japan. Institute of Technology. (By Professor Hidenori Fujiwara).

• 2009: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2010: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2011: University of Metz. (By Professor Jean Ludwig).

• 2011: University of Clermont-Ferrand.University Blaise Pascal. (By Professor Dominique Manchon).

• 2011: University of Oulou (Finland). (By Professor Mahmoud Filali).

• 2012: University of Allahabad. Harish-Chandra Institute. (By Professor Ratnakumar P. K).

• 2012 University of Tottori. (By Professor Junko Inoue).

• 2012: University of Metz. (By Professor Jean Ludwig).

• 2012-2013: JSPS grant. (Fukuoka, Tottori and Tokyo) (By Professor Hidenori Fujiwara).

• 2013: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2015: University of Tottori and University of Nagoya. (By Professors Junko Inoue and Hideyuki Ishi).

• 2017: University of Metz. (By Professor Jean Ludwig).

• 2017: University of Tottori and Tsukuba. (By Professors Junko Inoue and James Cole).

• 2017: University of Tokyo. (By Professor Toshiyuki Kobayashi).

• 2018: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2018: IHES (Institut des Hautes Études Scientifiques, UNIVERSITÉ PARIS-SACLAY): https://www.ihes.fr/

• 2019: Graduate School of Mathematics, Nagoya University. (By Professor Hideyuki Ishi).

• 2019: IHES (Institut des Hautes Études Scientifiques, UNIVERSITÉ PARIS-SACLAY). (By Professor Fanny Kassel).

• 2020: University of Lorraine (Metz). (By Professors Camille Laurent-Gengoux and Jean Ludwig).

Grigory Litvinov: University of Moscow (Russia)

Toshiyuki Kobayashi: Tokyo University (Japan)

Eberhard Kaniuth: Paderborn University (Germany)

Takaaki Nomura: Kyushu University (Japan)

Didier Arnal: University of Bourgogne (France)

Bradely. R. Currey: Saint Louis Missouri University (USA)

Jean Ludwig: University of Lorraine (France)

Sadok Kallel: University of Lille (France)

Ahmed Mohamed Alghamdi: Umm al-Qura University (Saudi Arabia)

Tilmann Wurzbacher: University of Lorraine (France)

Fumio Hiroshima: University of Kyushu (Japan)

Junko Inoue: University of Tottori (Japan)

Hidenori Fujiwara: University of Kinki (Japan)

Houssem Haddar: University of Palaiseau (France)

Tarou Yoshino: Tokyo University (Japan)

Ibrahim Mashhour: University of Koweit

Abderrazak Bouaziz: University of Poitiers (France)

Saîd Benayadi: University of Lorraine (France)

Camille Laurent-Gengoux: University of Lorraine (France)

Cedric Villani: University of Claude-Bernard (France)

Abdennacer Makhlouf: University haute-Alsace, Mulhouse (France)

Yoshinori Tanimura: Tokyo University (Japan)

Hideyuki Ishi: Nagoya University (Japan)

Atsumu Sasaki: Tokai University (Japan)

Samir Kabbaj: University of Kénitra (Morocco)

Abdelghani Zeghib: University of Lyon, CNRS (France)

Fanny Kassel: Institut des Hautes Etudes Scientifiques (IHES), Paris (France)

Dominique Manchon: University of Blaise-Pascal (France)

Said Fahlaoui: Université Moulay Ismail Meknès, (Morocco)

Abdellatif Bentaleb: Université Moulay Ismail Meknès, (Morocco)

Abdelhamid Boussejra: Université Ibn Tofail Kénitra, (Morocco)

Yuichiro Tanaka: Tokyo University (Japan)

Hiroshi Oda: Tokyo University (Japan)

Nobukazu Shimeno: Kwansei Gakuin University, Gakuen, (Sanda)

Takeshi Kawazoe: Keio University (Yokohama)

Sami Mustapha: Centre de Mathématiques de Jussieu Université Paris 7 (France)

James Bradford Cole: National Academy of Sciences (Washington)

Pierre Torasso: Université de Poitiers (France)

Jacques Faraut: Université Pierre et Marie Curie (France)

Michel Duflo: Centre de Mathématiques de Jussieu Université Paris 7 (France)

• Representation Theory of Solvable Lie Groups and Related topics: Jointly with H. Fujiwara (Fukuoka) and J. Ludwig (Metz-Luxembourg). Springer Monographs in Mathematics. To appear.

My Guest Speakers

Michel Duflo: Centre de Mathématiques de Jussieu Université Paris 7 (France)

Jacques Faraut: Université Pierre et Marie Curie (France)

Pierre Torasso: Université de Poitiers (France)

James Bradford Cole: National Academy of Sciences (Washington)

Sami Mustapha: Centre de Mathématiques de Jussieu Université Paris 7 (France)

Takeshi Kawazoe: Keio University (Yokohama)

Nobukazu Shimeno: Kwansei Gakuin University, Gakuen, (Sanda)

Hiroshi Oda: Tokyo University (Japan)

Yuichiro Tanaka: Tokyo University (Japan)

Abdelhamid Boussejra: Université Ibn Tofail Kénitra, (Morocco)

Abdellatif Bentaleb: Université Moulay Ismail Meknès, (Morocco)

Said Fahlaoui: Université Moulay Ismail Meknès, (Morocco)

December 16-19, 2019: Djerba, Conference TJC2019 in honour of Takaaki NomuraInvited talk: The universal pre-Lie-Rinehart algebra of aromatic trees. The abstract is available hereFebruary 25- March 04, 2019. Invited talk: Les groupoïdes de Lie et leurs représentations unitaires. Abstract: Les groupoïdes de Lie sont des objets qui font le lien entre les variétés différentiables et les groupes de Lie, qui en sont des cas particuliers. Nous allons décrire la structure de Poisson sur le dual de l'algébroïde de Lie d'un groupoïde de Lie G, et formuler une conjecture de type Kirillov reliant l'espace des feuilles symplectiques de cette variété de Poisson avec les représentations unitaires de la C^*-algèbre de G. Nous illustrerons ce principe à l'aide de quelques exemples.
Dominique is a regular visitor to our laboratory LAMHA at the Mathematics Department of the Faculty of sciences of Sfax. His last visit took place in December 2017 and right after he attended and gave an invited talk at the fifth Tunisian-Japanese Conference of geometric and harmonic analysis on homogeneous spacesTJC2017.

Dominique Manchon: University of Blaise-Pascal (France)

December 17- 21, 2018. Member of Jury and Referee of the thesis of Sabria Ben AyedInvited talk: On the Evolution of d'Alembertís Functional Equations. AbstractThrough this presentation, I focus on the link  between the solutions of certain d'Alembert type functional equations and the Gelfand pairs. I also give the form of solutions on algebraic structures such as semi-groups and monoids. 

Samir Kabbaj: University of Kénitra (Morocco)

September 14-19, 2018. Invited talk 2Introduction to visible actions on complex manifolds.  AbstractThe notion of (strongly) visible actions on complex manifolds has been introduced by T. Kobayashi (2004, 2005) to give an unified explanation of multiplicity-freeness property of representations of Lie groups which are realized in holomorphic sections of Hermitian holomorphic vector bundles (Propagation theorem of multiplicity-freeness property for holomorphic vector bundles). First of this lecture, we summarize a relationship between multiplicity-free representations and visible actions. Next, we explain the notion of (strongly) visible actions on complex manifolds.  In particular, we show their elementary examples as many as possible. They include such as the torus action on the complex vector space, the SO(2)-action on the complex upper-half plane and the one coming from the diagonalizable of complex matrices. 
Invited talk 3Recent study on a classification of strongly visible actions. AbstractMany examples of (strongly) visible actions has been found in connection with multiplicity-free representations. Then, we expect that multiplicity-free representations realized in holomorphic sections have strongly visible actions on the base spaces. In this aspect, we explain the recent study on the classification problem of strongly visible actions. In this talk, we treat complex manifolds such as :
- Hermitian symmetric spaces, 

- complex vector spaces, 
- flag varieties, 
- nilpotent orbits in complex simple Lie algebras. 

Atsumu Sasaki: Tokai University (Japan)

September 5-10, 2018. Invited talkHarmonic analysis for Frobenius Lie algebras. AbstractA real Frobenius Lie algebra is characterized as the Lie algebra of a Lie group admitting open coadjoint orbits. In the context of the orbit method, such open coadjoint orbits are expected to correspond to square-integrable unitary representations. We pose a conjecture about the relation between the formal degrees of the representations and the Pfaffian of the Frobenius Lie algebra.
December 2014. Invited talk: Holomorphically induced representation of a certain solvable Lie group.

Hideyuki Ishi: Nagoya University (Japan)

November 2016: Member of Jury and Referee of the thesis of Samiha Hydri. June 2014: Member of Jury and Referee of the thesis of Warda Bensalah.

Abdennacer Makhlouf: University haute-Alsace, Mulhouse (France)

November 2016: Member of Jury and Referee of the thesis of Samiha Hydri.

Camille Laurent-Gengoux: University of Lorraine (France)

Saîd Benayadi: University of Lorraine (France)

Hidenori is a regular visitor to the Faculty of Sciences of Sfax, Mathematics Department, Laboratory LAMHA. His last visit to Sfax took place in October 2014. Invited talk: Operateurs d'entrelacement pour les groupes de Lie résolubles exponentiels. After he got retired, the Third Tunisian-Japanese Conference was organised in his honor, which took place in Hammamet during December 17-21, 2013. Two special volumes (Volume 1 and Volume 2), subject of the Proceedings of the Conference were published by the occasion. 

Hidenori Fujiwara: University of Kinki (Japan)

Junko is also a regular visitor to the laboratory Laboratory LAMHA, Mathematics Department at the Faculty of Sciences of Sfax. Her last visit took place on September 2014. Invited talk: Holomorphically induced representations of solvable Lie groups: Examples of inductions from low-dimensional subgroups.

Junko Inoue: University of Tottori (Japan)

Tilmann Wurzbacher: University of Lorraine (France)

Ahmed Mohamed Alghamdi: Umm al-Qura University (Saudi Arabia)

Sadok Kallel: University of Lille (France)

Jean is my Phd thesis supervisor. He was also among the most regular visitors to the Faculty of Sciences of Sfax, Mathematics Department. His last visit to Sfax took place in May 2010. After he got retired, the Forth Tunisian-Japanese Conference was organised in his honor, which took place in Monastir during December 18-23, 2015. A special volume, subject of the Proceedings of the Conference was published by the occasion. 

Jean Ludwig: University of Lorraine (France)

February 2008. Member of jury and evaluator of the thesis of Dr. Nour Bensalah. Invited talk: Extending positive definite functions from subgroups of locally compact groups.

Eberhard Kaniuth: Paderborn University (Germany)

Invited Lectures & Visiting Positions.

  • All
  • Selected Invited Lectures
  • Visiting Positions

March 1994 (Monastir, Tunisie): Deuxième Colloque de la Société Mathématique de Tunisie. "Opérateur d'entrelacement des représentations monomiales des groupes de Lie nilpotents".

August 1994 (Moscou, Russia): Participation au Congrès International de Mathématiques à Moscou organisé par l'International Sophus Lie Centre et la Russian Independant University. " On the cortex of two and three steps nilpotent Lie groups".

October 1995 (Luxembourg): Centre Universitaire de Luxembourg. "Méthode d'orbites et désintégration des représentations unitaires des groupes de Lie nilpotents".

June 1996 (Metz, France): Colloque Metz-Nancy-Strasbourg. " Sous-groupes de Kazdhan et moyennes invariantes sur la sphère".

February 1997 (Luxembourg): Centre Universitaire de Luxembourg. "Analyse multirésolution, bases orthonormées et bases de Riesz".

June 1997 (Poitiers, France): Colloque en l'honneur de Pierre Bernat, Université de Poitiers."Séparation des représentations unitaires des groupes de Lie nilpotents".

February 1998 (Paris, France): Paris 7, Jussieu. "Analyse harmonique sur les espaces homogènes exponentiels".

June 1998 (Leiden, Pays Bas): Leiden University, The Netherlands, ESGT 98/ European School in Group Theory. "Harmonic Analysis for Certain Monomial Representations of an Exponential Solvable Lie Group".

March 1999 (Tabarka, Tunisia): Colloque de la Société Mathématique de Tunisie. "Frobenius reciprocity and differential operators on certain solvable homogeneous spaces.”

April 1999 (Las Vegas, U.S.A): Sectional Meeting of the American Mathematical Society, Las Vegas (U.S.A)."Generalized Moment Sets and Unitary Representations of Exponential Solvable Lie Groups ".

April 1999 (Saint-Louis, U.S.A): The Department of Mathematics and Computer Science. The University of Saint Louis at Missouri.

February 2000 (Monastir, Tunisia): "Opérateurs Différentiels sur l’espace de la restriction d’une représentation unitaire d’un groupe de Lie résoluble exponentiel ".

July 2000 (Barcelone, Spain): European Congress of Mathematics: "Differential Operators on the Space of a Unitary Representation of Exponential Lie Groups".

July 2000 (Vigo, Spain): First Colloquim on Lie Theory and applications: "Harmonic Analysis on Some Exponential Solvable Homogeneous Spaces".

August 2000 (Odense, Danemark): European School in Group Theory and Plancherel Formula: " The Penney-Fujiwara-Plancherel Formula of Nilpotent Lie Groups ".

March 2001 (Hammamet, Tunisia): SMT 2001. " Analyse Harmonique sur les Espaces homogènes Exponentiels ".

October 2001 (Luxembourg): "Estimation de la norme de la transformée de Fourier Lp sur les groupes résolubles ".

October 2001 (Nancy, France): " Estimation de la norme de la transformée de Fourier Lp sur les groupes de Lie nilpotents ".

October 2001 (Metz, France): "Commutativité des sous-algèbres dans l’algèbre enveloppante d’un groupe de Lie nilpotent ".

August 2002 (Bejing, China): International Congress of Maths, ICM 2003: "Differential operators on the space of restricted representations on nilpotent Lie groups".

December 2002 (Clermont Ferrand, France): "Multiplicités des Représentations mixtes des groupes de Lie complètement résolubles".

February 2003 (Vienna, Austria): International workshop on Idempotent Mathematics and dequantization. "Dequantization of coadjoint orbits: Moment sets and Characteristic varieties".

August 2003 (Edmonton, Canada): Banach Algebra 2003. " The Cowling-Price Theorem for Nilpotent Lie Groups ".

September 2003 (Munich, Germany): GSF-International workshop on Uncertainty priciples. GSF-International workshop on Uncertainty priciples. " Some Uncertainty principles on Nilpotent Lie Groups ".

September 2003 (Sfax, Tunisia): Troisièmes Journées d’Analyse harmonique. : " Sur Certains Principes d’incertitude sur les groupes de Lie Nilpotents ".

October 2003 (Luxembourg): " Le Théorème de Cowling-Price sur les groupes de Lie Nilpotents ".

December 2003 (Clermont Ferrand, France): " Le Théorème de Cowling-Price sur les groupes de Lie Nilpotents ".

June 2004 (Escorial, Spain): " Some Uncertainty principles and Harmonic Analysis on Nilpotent Lie Groups ".

July 2004 (Istanbul, Turkey): " Differential Operators on the space of a Restricted Representation on Nilpotent Lie groups ".

November 2004 (Awajishima, Japan): "Weak proper actions on exponential homogeneous spaces ".

April 2005 (Munich, Germany): "Some uncertainty principles on NPC nilpotent Lie groups".

May 2005 (Dijon, France): "Sur les actions propres sur les espaces homogènes nilpotents".

June 2005 (Kiel, Germany): "Some uncertainty principles on NPC nilpotent Lie groups".

April 2006 (Paderborn, Germany): "The Cowling-Price Theorem on 2-NPC nilpotent Lie groups".

July 2006 (Istanbul, Turkey):"Weak proper actions on solvable homogeneous spaces ".

September 2006 (Clermont-Ferrand, France):"Actions faiblement propres sur les espaces homogènes exponentiels".

December 2006 (Dijon, France): "Actions faiblement propres sur les espaces homogènes résolubles".

February 2007 (Kyushu, Japan): "Proper and weak proper actions on solvable homogeneous spaces ".

February 2007 (RIMS-Kyoto, Japan): "Some uncertainty principles on nilpotent Lie groups ".

May 2007 (Oujda, Morocco): "Opérateurs d’entrelacement des representations monomiales des groupes de Lie nilpotents".

September 2007 (Metz, France): "Harmonic Analysis on monomial representations of a nilpotent Lie groups ".

November 2007 (Dijon, France): "Harmonic Analysis on monomial representations of a nilpotent Lie groups ".

December 2007 (Hong-Kong): "Deformation spaces of an action of discontinuous subgroups on nilpotent homogebeous spaces ".

April 2008 (Paderborn, Germany): "Deforming discontinuous subgroups on homogeneous spaces".

June 2008 (Elescorial, Spain): "On Hardy’s Theorem on connected nilpotent Lie group".

August 2008 (Bangalore, India) (two lectures): "General Uncertainty principles on solvable Lie groups ".

November 2008 (Luminy, Marseille):"The deformation spaces of the action of discontinuous subgroups acting on solvable homogeneous spaces".

November 2008 (Atami, Japan):"The deformation spaces of the action of discontinuous groups acting on solvable homogeneous spaces ".

February 2009 (Kyushu, Japan): "Rigidity property of deformations on nilpotent Lie groups ".

April 2009 (Kénitra, Morocco): "Description de l’espace de deformation des actions des groupes discontinus".

July 2009 (Casablanca, Morocco): "Sur certains principes d’incertitude pour les groupes de Lie nilpotents".

December 2009 (Taiwan): "The Plancherel Theorem of monomial representation of exponential discrete type".

March 2010 (SMT, Sousse): "Some uncertainty principles on solvable Lie groups".

July 2010 (Oulou, Finland): "On sharpness problems of some uncertainty principles on nilpotent Lie groups".

June 2011 (Luxembourg): "Estimate of the Fourier transform norm on some Lie groups".

June 2011 (China): "Some uncertainty principles on certain Lie groups".

March 2012 (HRI, India): "The representation theory of nilpotent Lie groups". (Four lectures)

September 2012 (MIMS, Tunis): "The theory of discontinuous subgroups acting on homogeneous spaces".

October 2012 (Nice, France): "On the geometry of discontinuous subgroups acting on homogeneous spaces".

November 2012 (Tokyo): "On the geometry of discontinuous subgroups acting on solvable homogeneous spaces".

November 2012 (Tokyo): "Some aspects of the deformation theory of discontinuous subgroups of solvable homogeneous spaces".

Decemmber 2012 (Sousse) :"Harmonic analysis on monomial representations of exponential solvable Lie groups".

January 2013 (Kyushu, Japan): "Harmonic analysis on monomial representations of discrete type of exponential solvable Lie groups".

April 2013 (Clermont-Ferrand, France): "Sur les representations de type discret des groups de résolubles exponentials".

Mai 2013 (Granada, Spain): "On the $L^p-$Fourier transform norm on some Lie groups".

February 2014 (Tsukuba): "On the Fourier transform on some Lie groups".

February 2014 (Kyushu, Japan): "On the theory of deformation of discontinuous actions on homogeneous spaces".

December 2014 (Marrakech, Morocco): "On the Lp-Fourier transform norm on some Lie groups".

January 2015 (Hammamet, Tunisia): "On the Fourier transform on some Lie groups".

August 2015 (Halifax, Canada): "On the Lp-Fourier transform norm on some Lie groups".

December 2015 (New Delhi): "Estimate of the Lp-Fourier transform norm on certain Lie groups".

February 2016 (Tsukuba, Japan): "Some uncertainty principles on certain Lie groups ".

September 2016 (Tsukuba, Japan): "Hardy’s theorem on Lie groups".

January 2017 (Tottori, Japan): "Monomial representations of discrete types for certain exponential Lie groups ".

July 2017 (Oberwolfach, Germany): "On the Lp-Fourier transform norm for some solvable Lie groups and their compact extensions". https://www.mfo.de/occasion/1730/www_view

January 2018 (Bilbao, Spain):“Some uncertainty principales on solvable Lie groups and their compact extensions” https://sites.google.com/site/uncertainty2018/

February 2018 ((The Tunisian Academy of Sciences, letters and Arts: Beit al HikmaTunisian Academy of Sciences, Letters and Arts: Beit Elhikma): "L'infini". http://www.beitalhikma.tn/conference-linfinijeudi-22-fevrier-201816h00/?lang=fr

March 2018 (TEM2018: Ibn Tofail, Kenitra Morocco): "On the L^p Fourier Transform on some Lie groups". http://ensa.unit.ac.ma/tem2018

May 2018 (Casablanca, Morocco). Harmonic Analysis and Integral Geometry: "A full generalized version of Hardy's Theorem on nilpotent Lie groups".

June 2018 (20-23, University of Haute Alsace, Mulhouse, France): Algebra and Lie Theory Conference. "Monomial representations of discrete type and differential operators". http://www.math.uha.fr/webALT18/home.html

September 2018 (Rabat, Morocco). Académie Hassan II des Sciences et Techniques: Mathématiques, Applications et Interactions avec la Physique: Quelques propriétés de la transformée de Fourier sur certains groupes de Lie.

October 2018 (IHES, PARIS-SACLAY, https://www.ihes.fr/): "On the deformation theory of discontinuous groups acting on solvable homogeneous spaces" https://indico.math.cnrs.fr/event/3969/

October 2018 (Metz, Université de Lorraine, France): "C'est quoi l'analogue du Théorème de Müntz-Szász pour un groupe de Lie?" Théorie de Lie, Géométrie et Analyse (LieGA): http://www.iecl.univ-lorraine.fr/Les-Seminaires/LieGA/

October 2018 (Journées SL2(R) à Reims): "Does "ax+b" stand for the solvable analogue of SL2(R) in deformation theory ?" https://indico.math.cnrs.fr/event/3782/overview

October 2018 (Laboratoire de Mathématiques Blaise Pascal, Clermont-Ferrand): "Représentations monomiales des groupes de Lie exponentiels et opérateurs différentiels" http://recherche.math.univ-bpclermont.fr/seminaires/gt_gaao.php

December 2018 (Graduate School of Mathematical Sciences, University of Tokyo): "Monomial representations of discrete type and differential operators": https://www.ms.u-tokyo.ac.jp/seminar/2018/sem18-268_e.html

December 2018 (Faculty of Mathematics, Kyushu University, Japan): "Müntz-Szàsz analogues for some compact extensions of nilpotent Lie groups".

February 2019 (Graduate School of Mathematics, Nagoya, Japan): "Harmonic analysis on monomial representations of exponential Lie groups and a counterexample to Duflo’s Conjecture": http://www.math.nagoya-u.ac.jp/en/research/calendar/data/1547169713-98.html

April 2019 (Marrakech, Morocco, In memory of Ahmad Intissar): "Harmonic analysis around monomial representations of exponential Lie groups": https://icmmp2019.doodlekit.com/

April 2019 (American University of Sharjah, UAE. Department of Mathematics and Statistics): "Branching laws of some unitary representations of exponential Lie groups and related differential operators algebras".

April 2019 (New York University Abu Dhabi, UAE): "Some problems related to Fourier analysis on solvable Lie groups and their compact extensions".

July 2019 (Winnipeg, Canada): Banach Algebra 2019. "Some uncertainty principles on nilpotent Lie groups (in memory of Eberhard Kaniuth)": https://server.math.umanitoba.ca/~banach2019/

October 2019 (Errachidia, Morocco): Workshop on Harmonic Analysis and Integral Geometry with Applications. "Sharpness problems related to some uncertainty principles on nilpotent Lie groups": https://whaiga2019.sciencesconf.org/resource/page/id/13

July 2020 (Tunis): GTT 1 : Geometry and Topology in Tunisia I. "Est ce que la géométrie des orbites coadjointes serait derrière une preuve de la conjecture polynomiale des restrictions nilpotentes?" https://www.mims-institut.org/events/

• 1998 and 2000: University of Metz (France). (By Professor Jean Ludwig).

• 1999: Saint-Louis, Missouri, USA. The Department of Mathematics and Computer Sciences. (By Professors Chal Benson and Gail Ratcliff).

• 2001 : University of Nancy (France). Institut Henri Poincaré. (By Professor Dominique Manchon, Project CNRS-DGRST).

• 2002: University of Kinki, Fukuoka, Japon. Institute of Technology. (By Professor Hidenori Fujiwara).

• 2002 and 2003 : University of Clermont-Ferrand (France). University Blaise Pascal. (By Professor Dominique Manchon, Project CNRS-DGRST).

• 2004 : RIMS, Kyoto. (By Professor Toshiyuki Kobayashi).

• 2006: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon, Project CNRS-DGRST).

• 2006: University of Paderborn (Germany). (By Professor Eberhard Kanuith).

• 2007: University of Kinki, Fukuoka, Japan. Institute of Technology. (By Professor Hidenori Fujiwara).

• 2007: RIMS, Kyoto. (By Professor Toshiyuki Kobayashi).

• 2007 : Max-Planck Institute. Bonn, (Germany). (By Professor Bernhard Krötz).

• 2007: Universities of Clermont-Ferrand and Bourgogne. (By Professors Dominique Manchon and Didier Arnal).

• 2007: University of Luxembourg. Département de Mathématiques. (By Professor Carine Molitor-Braun).

• 2008: University of Paderborn (Germany). (By Professor Eberhard Kanuith).

• 2008: Indian Institute of Science, Bangalore (India). (By Professor Sunduram Thangavelu).

• 2008: Universities of Clermont-Ferrand and Bourgogne. (By Professors Dominique Manchon and Didier Arnal).

• 2009: University of Kinki, Fukuoka, Japan. Institute of Technology. (By Professor Hidenori Fujiwara).

• 2009: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2010: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2011: University of Metz. (By Professor Jean Ludwig).

• 2011: University of Clermont-Ferrand.University Blaise Pascal. (By Professor Dominique Manchon).

• 2011: University of Oulou (Finland). (By Professor Mahmoud Filali).

• 2012: University of Allahabad. Harish-Chandra Institute. (By Professor Ratnakumar P. K).

• 2012 University of Tottori. (By Professor Junko Inoue).

• 2012: University of Metz. (By Professor Jean Ludwig).

• 2012-2013: JSPS grant. (Fukuoka, Tottori and Tokyo) (By Professor Hidenori Fujiwara).

• 2013: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2015: University of Tottori and University of Nagoya. (By Professors Junko Inoue and Hideyuki Ishi).

• 2017: University of Metz. (By Professor Jean Ludwig).

• 2017: University of Tottori and Tsukuba. (By Professors Junko Inoue and James Cole).

• 2017: University of Tokyo. (By Professor Toshiyuki Kobayashi).

• 2018: University of Clermont-Ferrand. University Blaise Pascal. (By Professor Dominique Manchon).

• 2018: IHES (Institut des Hautes Études Scientifiques, UNIVERSITÉ PARIS-SACLAY): https://www.ihes.fr/

• 2019: Graduate School of Mathematics, Nagoya University. (By Professor Hideyuki Ishi).

• 2019: IHES (Institut des Hautes Études Scientifiques, UNIVERSITÉ PARIS-SACLAY). (By Professor Fanny Kassel).

• 2020: University of Lorraine (Metz). (By Professors Camille Laurent-Gengoux and Jean Ludwig).

Contact Me.

Let's Talk

Faculty of Sciences of Sfax Mathematics Department Route de Soukra , B.P 1171 3000 Sfax -Tunisia
(216) 98 641 600 (216) 74 676 210