Birational moduli and nonabelian cohomology, II
A. Buium (1989)
Compositio Mathematica
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Displaying similar documents to “Birational moduli and nonabelian cohomology”
Birational moduli and nonabelian cohomology, II
Serre–Tate theory for moduli spaces of PEL type
Ben Moonen (2004)
Annales scientifiques de l'École Normale Supérieure
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The Picard group of a scheme over an Artin ring
Joseph Lipman (1976)
Publications Mathématiques de l'IHÉS
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Vanishing of Hochschild cohomology for affine group schemes and rigidity of homomorphisms between algebraic groups.
Margaux, Benedictus (2009)
Documenta Mathematica
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Subspaces of moduli spaces of rank one local systems
Carlos Simpson (1993)
Annales scientifiques de l'École Normale Supérieure
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Geometric and categorical nonabelian duality in complex geometry
Siegmund Kosarew (2002)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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The Leitmotiv of this work is to find suitable notions of dual varieties in a general sense. We develop the basic elements of a duality theory for varieties and complex spaces, by adopting a geometric and a categorical point of view. One main feature is to prove a biduality property for each notion which is achieved in most cases.
A dimension formula for Ekedahl-Oort strata
Ben Moonen (2004)
Annales de l’institut Fourier
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We study the Ekedahl-Oort stratification on moduli spaces of PEL type. The strata are indexed by the classes in a Weyl group modulo a subgroup, and each class has a distinguished representative of minimal length. The main result of this paper is that the dimension of a stratum equals the length of the corresponding Weyl group element. We also discuss some explicit examples.