English

Additive actions on projective hypersurfaces with a finite number of orbits

Algebraic Geometry 2025-08-05 v2

Abstract

An induced additive action on a projective variety XPnX \subseteq \mathbb{P}^n is a regular action of the group Gam\mathbb{G}_a^m on XX with an open orbit, which can be extended to a regular action on the ambient projective space Pn\mathbb{P}^n. In this work, we classify all projective hypersurfaces admitting an induced additive action with a finite number of orbits.

Keywords

Cite

@article{arxiv.2405.00171,
  title  = {Additive actions on projective hypersurfaces with a finite number of orbits},
  author = {Viktoriia Borovik and Alexander Chernov and Anton Shafarevich},
  journal= {arXiv preprint arXiv:2405.00171},
  year   = {2025}
}