English

On the classification of normal G-varieties with spherical orbits

Algebraic Geometry 2020-08-31 v4 Representation Theory

Abstract

In this article, we investigate the geometry of reductive group actions on algebraic varieties. Given a connected reductive group GG, we elaborate on a geometric and combinatorial approach based on Luna-Vust theory to describe every normal GG-variety with spherical orbits. This description encompasses the classical case of spherical varieties and the theory of T\mathbb{T}-varieties recently introduced by Altmann, Hausen, and S\"uss.

Keywords

Cite

@article{arxiv.1610.02837,
  title  = {On the classification of normal G-varieties with spherical orbits},
  author = {Kevin Langlois},
  journal= {arXiv preprint arXiv:1610.02837},
  year   = {2020}
}

Comments

Special thanks to the referee. Annales de la Faculte des Sciences de Toulouse 29 (2020) no. 2, 271-334

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