Faisceaux triangulaires sur l'espace projectif
Families of supersingular abelian surfaces
Filtration Patterns for Representations of Algebraic Groups and Their Frobenius Kernels.
Filtrations of meromorphic C* actions on complex manifolds.
Filtrations of Principal Indecomposable Modules of Frobenius Kernels of Reductive Groups.
Finite group actions and étale cohomology
Finite groups of automorphisms of K3 surfaces and the Mathieu group.
Finiteness of local fundamental groups for quotients of affine varieties under reductive groups.
Finiteness Results for Algebraic K3 Surfaces.
Finite-order algebraic automorphisms of affine varieties.
Fixed points, exceptional orbits, and homology of affine -surfaces
Fixed points for reductive group actions on acyclic varieties
Let be a smooth, affine complex variety, which, considered as a complex manifold, has the singular -cohomology of a point. Suppose that is a complex algebraic group acting algebraically on . Our main results are the following: if is semi-simple, then the generic fiber of the quotient map contains a dense orbit. If is connected and reductive, then the action has fixed points if .
Free Actions of Finite Groups on Varieties. II.
Free Actions of Finite Groups on Varieties. II. (Erratum).
Galois covers between surfaces
We give a classification of finite group actions on a surface giving rise to quotients, from the point of view of their fixed points. It is shown that except two cases, each such group gives rise to a unique type of fixed point set.
Geometric invariant theory for general algebraic groups
Geometry of modules over tame quasi-tilted algebras
Glatte Einbettungen von G-U .
Good moduli spaces for Artin stacks
We develop the theory of associating moduli spaces with nice geometric properties to arbitrary Artin stacks generalizing Mumford’s geometric invariant theory and tame stacks.
Good properties of algebras of invariants and defect of linear representations.