Clôture intégrale et opérations de tores algébriques de complexité un dans les variétés affines

Abstract

We describe explicitly the normalization of affine varieties with an algebraic torus action of complexity one in terms of polyhedral divisors. We also provide a description of homogeneous integrally closed ideals of affine T-varieties of complexity one.

arXiv commentTransform. Groups. 18. (2013). 739-765