A counterexample to DG version of Han's conjecture
Rings and Algebras
2025-12-16 v1 Algebraic Geometry
K-Theory and Homology
Abstract
In 2004, Han proposed the following conjecture: let be a finite-dimensional -algebra. If for only finitely many , then is smooth. This conjecture can be generalized to the DG setting: let be a finite-dimensional DG -algebra. If for only finitely many , then is smooth. In this note, we show that the DG generalization of Han's conjecture is false.
Cite
@article{arxiv.2512.12460,
title = {A counterexample to DG version of Han's conjecture},
author = {Yeqin Liu and Yu Shen},
journal= {arXiv preprint arXiv:2512.12460},
year = {2025}
}