-modules and representation theory of Lie groups
Decomposable ternary cubics.
Decomposition of isometries of isotropic over finite fields into simple isometries
Deformation of the nilpotent zero scheme and the intersection ring of invariant subvarieties.
Déformations de courbes avec action de groupe.
Déformations de courbes avec action de groupe II.
Deformations of Principal Bundles on the Projective Line.
Deformations of theta divisors and the rank 4 quadrics problem
Degeneration of the Kummer sequence in characteristic
We study a deformation of the Kummer sequence to the radicial sequence over an -algebra, which is somewhat dual for the deformation of the Artin-Schreier sequence to the radicial sequence, studied by Saidi. We also discuss some relations between our sequences and the embedding of a finite flat commutative group scheme into a connected smooth affine commutative group schemes, constructed by Grothendieck.
Degenerations for representations of quivers with relations
Degenerations in the module varieties of almost cyclic coherent Auslander-Reiten components
We establish when the partial orders and coincide for all modules of the same dimension from the additive category of a generalized standard almost cyclic coherent component of the Auslander-Reiten quiver of a finite-dimensional algebra.
Degenerations in the Module Varieties of Generalized Standard Auslander-Reiten Components
Deligne-Lusztig restriction of a Gelfand-Graev module
Using Deodhar’s decomposition of a double Schubert cell, we study the regular representations of finite groups of Lie type arising in the cohomology of Deligne-Lusztig varieties associated to tori. We deduce that the Deligne-Lusztig restriction of a Gelfand-Graev module is a shifted Gelfand-Graev module.
D-elliptic sheaves and the Langlands correspondence.
Démonstration de la conjecture de Mumford
Dénombrement des types de K-homotopie. Théorie de la déformation
Der Grad erzeugender Funktionen von Invariantenringen.
Derivations of Negative Weight and Non-Smoothability of Certain Singularities.
Description de certains super groupes classiques
La première partie de cet article est une adaptation au cadre des super groupes d’un théorème dû à Cartier qui assure que les groupes formels sont lisses en caractéristique zéro. La seconde partie donne une description des super groupes de Lie dits “vraiment classiques” comme groupes d’automorphismes de super algèbres semi-simples associatives à involution, selon une méthode de Weil.
Desingularizations of Varieties of Nullforms.