English

Deformations of locally constant stability conditions and good moduli spaces

Algebraic Geometry 2026-04-01 v1

Abstract

We give a structure result on the set of locally constant stability conditions, Stab(D/R)\operatorname{Stab}(\mathcal{D}/R), defined by Halpern-Leistner-Robotis showing that it has the structure of a complex manifold, in total analogy with Bridgeland's work. As a consequence, we show that the property of having relative mass-hom bounds and the existence of good moduli spaces depends only on the connected components of Stab(D/R)\operatorname{Stab}(\mathcal{D}/R). Lastly, we observe that the datum of a locally constant stability condition is equivalent to that of a flat family of stability conditions, as described by Bayer et al. in the context of noncommutative algebraic geometry.

Keywords

Cite

@article{arxiv.2603.29053,
  title  = {Deformations of locally constant stability conditions and good moduli spaces},
  author = {Ian Selvaggi},
  journal= {arXiv preprint arXiv:2603.29053},
  year   = {2026}
}

Comments

31 pages, comments are welcome