Stable affine models for algebraic group actions.
Reichstein, Zinovy, Vonessen, Nikolaus (2004)
Journal of Lie Theory
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Reichstein, Zinovy, Vonessen, Nikolaus (2004)
Journal of Lie Theory
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Hausen, Jürgen (2001)
Documenta Mathematica
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Olga Chuvashova, Nikolay Pechenkin (2013)
Open Mathematics
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Let X be an affine T-variety. We study two different quotients for the action of T on X: the toric Chow quotient X/C T and the toric Hilbert scheme H. We introduce a notion of the main component H 0 of H, which parameterizes general T-orbit closures in X and their flat limits. The main component U 0 of the universal family U over H is a preimage of H 0. We define an analogue of a universal family WX over the main component of X/C T. We show that the toric Chow morphism restricted on...
Hanspeter Kraft (1994-1995)
Séminaire Bourbaki
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Ivan V. Arzhantsev (2003)
Annales de l’institut Fourier
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We classify all finitely generated integral algebras with a rational action of a reductive group such that any invariant subalgebra is finitely generated. Some results on affine embeddings of homogeneous spaces are also given.
Frédéric Bien, Michel Brion (1996)
Compositio Mathematica
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Michel Brion (2010)
Les cours du CIRM
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These notes present some fundamental results and examples in the theory of algebraic group actions, with special attention to the topics of geometric invariant theory and of spherical varieties. Their goal is to provide a self-contained introduction to more advanced lectures.
Gaitsgory, Dennis, Nadler, David (2009)
Documenta Mathematica
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