Derived equivalences for chain complexes with support
Category Theory
2026-02-17 v2 Commutative Algebra
Algebraic Geometry
Abstract
For a Serre subcategory and a resolving subcategory of an abelian category, we show that the derived equivalence holds under certain conditions. We apply this to obtain derived equivalences in the contexts of chain complexes of graded modules or coherent sheaves, with finite -dimension, supported on closed sets having eventually finite -dimension. Using this, we obtain descriptions of the homotopy fibers in (hermitian) K theory of the restriction maps to certain open sets.
Cite
@article{arxiv.2601.16729,
title = {Derived equivalences for chain complexes with support},
author = {Ganapathy Krishnamoorthy and Sarang Sane},
journal= {arXiv preprint arXiv:2601.16729},
year = {2026}
}
Comments
27 pages. final section added