English

On Picard Number and Dimension of Algebraic Homogeneous Spaces

Algebraic Geometry 2026-03-24 v3

Abstract

An algebraic variety XX is called a homogeneous space if there exists a transitive regular action of an algebraic group on XX. We prove inequalities between the dimension of a homogeneous space of a linear algebraic group and its Picard number.

Keywords

Cite

@article{arxiv.2412.07044,
  title  = {On Picard Number and Dimension of Algebraic Homogeneous Spaces},
  author = {Ivan Beldiev and Dmitry Timashev},
  journal= {arXiv preprint arXiv:2412.07044},
  year   = {2026}
}