Year: 2026
Type: preprint
Abstract: We prove that if $X$ is a semi-rigid normal rational affine algebraic variety with torus action of complexity one, with only constant invertible global functions and finitely generated divisor class group, then the identity component of the automorphism group of $X$ is a semi-direct product of a torus and the maximal unipotent-generated subgroup.
Source: arXiv (Cornell University)
Author: Rassolov, Kirill
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
Funder: Russian Science Foundation
OpenAlex ID: W7212180990