Universal deformation rings and derived equivalences
Representation Theory
2025-01-24 v1
Abstract
In this paper, we show that stable functors of derived equivalences preserve the isomorphism classes of versal deformation rings of finitely generated Gorenstein-projective modules over finite dimensional -algebras. Then we generalize Vel\'ez-Marulanda's result \cite{V} in the case of singular equivalences of Morita type with levels for Gorenstein algebras. Moreover, we also prove that stable equivalences of Morita type preserve the isomorphism classes of versal deformation rings of finitely generated Gorenstein-projective modules over finite dimensional -algebras.
Cite
@article{arxiv.2501.13424,
title = {Universal deformation rings and derived equivalences},
author = {Shengyong Pan},
journal= {arXiv preprint arXiv:2501.13424},
year = {2025}
}
Comments
All comments are welcome. arXiv admin note: text overlap with arXiv:1512.06522; text overlap with arXiv:1705.05230, arXiv:2109.08015, arXiv:2402.18580 by other authors