Published papersArticles publiés

• Harmonicity of normal almost contact metric structures, withavec M. Benyounes, E. Loubeau andet E. Vargara-Diaz, Differential Geometry and its Applications, 103 (2026), 36 pages (pdf).
• Higher symmetries of power of the Laplacian and rings of differential operators, withavec J.T. Stafford, Compositio Mathematica, 153 (2017), 678--716 (pdf).
• Radial components, prehomogeneous vector spaces, and rational Cherednik algebras, Int. Math. Res. Not. IMRN, 2009 no. 3 (2009), 462--511 (pdf).
• Differential Operators and Cohomology Groups on the Basic Affine Space, withavec J.T. Stafford, Studies in Lie Theory, Dedicated to A. Joseph, Progress in Math., 243, Birkhauser, 2006, 377--403 (pdf).
• Krull dimension of the enveloping algebra of a semisimple algebra, Proc. Amer. Math. Soc., 130 (2002), 3519--3523 (pdf).
• Invariant distributions supported on the nilpotent cone of a semisimple Lie algebra, Trans. Amer. Math. Soc., 353 (2001), 4189--4202 (pdf).
• Invariant differential operators on the tangent space of some symmetric spaces, withavec J.T. Stafford, Annales de l'Institut Fourier, 49 (1999), 1711--1741 (pdf). See below for an extended version.Voir ci-dessous pour une version étendue.
• Differential operators on some nilpotent orbits, withavec J.T. Stafford, Representation Theory , Volume 3 (1999), 457--473 (pdf).
• Adjoint vector fields on the tangent space of semisimple symmetric spaces, withavec R. Ushirobira, Journal of Lie Theory, 9 (1999), 293--304 (pdf).
• Equivariant D-modules attached to nilpotent orbits in a semisimple Lie algebra, Transformation Groups, 3 (1998), 337--353 (pdf).
• Differential operators commuting with invariant functions, withavec J.T. Stafford, Comment. Math. Helv., 72 (1997), 426--433 (pdf).
• Semi-simplicity of invariant holonomic systems on a reductive Lie algebra, withavec J.T. Stafford, Amer. J. Math., 119 (1997), 1095--1117 (pdf), andet Corrigendum (pdf).
• The kernel of an homomorphism of Harish-Chandra, withavec J.T. Stafford, Ann. Sci. Éc. Normale Sup., 29 (1996), 385--397 (pdf).
• Invariant Differential Operators and an Homomorphism of Harish-Chandra, withavec J.T. Stafford, J. Amer. Math. Soc., 8 (1995), 365--372 (pdf).
• Algebraic structure of multi-parameter quantum groups, withavec T.J. Hodges and M. Toro, Advances in Math., 126 (1997), 52--92 (pdf).
• Primitive ideals of Cq[SL(n)], withavec T.J. Hodges, J. Algebra, 168 (1994), 455--468 (pdf).
• Primitive ideals of Cq[SL(3)], withavec T.J. Hodges, Comm. Math. Phys., 156 (1993), 581--605 (pdf).
• The quantum coordinate ring of the special linear group, withavec J.T. Stafford, J. Pure and Applied Algebra, 86 (1993), 181--186 (pdf).
• Modules over the Sklyanin Algebra, withavec S.P. Smith, Bull. Soc. Math. France, 121 (1993), 35--90 (pdf).
• Some Properties of Non-commutative Regular Graded Rings, Glasgow Math J., 34 (1992), 277-300 (pdf).
• Relèvements d'opérateurs différentiels sur les anneaux d'invariants. (Liftings of differential operators over rings of invariants). Operator algebras, unitary representations, enveloping algebras, and invariant theory, Proc. Colloq. in Honour of J. Dixmier, Paris/Fr. 1989, Prog. Math. 92, 449-470 (1990) (pdf).
• Rings of differential operators on classical rings of invariants, withavec J.T. Stafford, Mem. Amer. Math. Soc., 81, 1989 (pdf).
• Operateurs differentiels sur les surfaces munies d'une bonne C*-action. Séminaire d'Algèbre Paul Dubreil et Marie-Paul Malliavin, Lecture Notes in Mathematics vol. 1404 , 269--295 (1989) (pdf).

Notes and unpublished papersNotes et textes non publiés

• D-modules et distributions sphériques (le cas tangent), exposé au Groupe de Recherche "Analyse Harmonique Invariante sur les Espaces Symétriques Réductifs", novembre 2004 (pdf).
• Invariant differential operators on the tangent space of some symmetric spaces, withavec J.T. Stafford, long version, 1997 (pdf). See above for the published version.Voir ci-dessus pour la version publiée.
• Notes on equivariant D-modules, October 1997 (pdf).
• Differential operators on a reductive Lie algebra, Lectures given at the University of Washington, Seattle, 1995 (pdf).
• Orbite nilpotente minimale, withavec P. Tauvel, 1994 (pdf).
• Primitive ideals of the quantum group Cq[G], withavec T.J. Hodges, 1993 (pdf).