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- Centre National de la Recherche ScientifiqueFR376 papers
- Université Grenoble AlpesFR309 papers
- Université Joseph FourierFR201 papers
- Laboratoire de Mathématiques d'OrsayFR42 papers
- Pôle de recherche et d'enseignement supérieur Université de GrenobleFR37 papers
- Institut de Mathématiques de Jussieu-Paris Rive GaucheFR31 papers
- Laboratoire de Mathématiques Jean LerayFR25 papers
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- Université Toulouse III - Paul SabatierFR17 papers
10 papers · 2 filters
Unramified cohomology of degree 3 and Noether's problem
Emmanuel Peyre
Let be a finite group and be a faithful representation of over {\bf C}. The group acts on the field of rational functions . The aim of this paper is t…
Normal affine surfaces with -actions
Hubert Flenner, Mikhail Zaidenberg
A classification of normal affine surfaces admitting a -action was given in the work of Białynicki-Birula, Fieseler and L. Kaup, Orlik and Wagreich, Rynes and others. We p…
Witten's top Chern class via K-theory
Alessandro Chiodo
The Witten top Chern class is the crucial cohomology class needed to state a conjecture by Witten relating the Gelfand-Dikii hierarchies to higher spin curves. In math.AG/0011032,…
Stable reductive varieties II: Projective case
Valery Alexeev, Michel Brion
We construct a moduli space of stable projective pairs with a nontrivial action of a connected reductive group. These stable reductive pairs are higher-dimensional analogs of stabl…
Stable reductive varieties I: Affine varieties
Valery Alexeev, Michel Brion
The motivation of this work is to construct an analog of compactified moduli of abelian varieties and toric pairs in the case of non-commutative algebraic group G. We introduce a c…
Toric Varieties as Spectra of Homogeneous Prime Ideals
Markus Perling
We describe the construction of a class of toric varieties as spectra of homogeneous prime ideals.