English

Trace and Kunneth formulas for singularity categories and applications

Algebraic Geometry 2019-02-01 v2 Category Theory K-Theory and Homology

Abstract

We present an \ell-adic trace formula for saturated and admissible dg-categories over a base monoidal dg-category. Moreover, we prove K\"unneth formulas for dg-category of singularities, and for inertia-invariant vanishing cycles. As an application, we prove a version of Bloch's Conductor Conjecture (stated by Spencer Bloch in 1985), under the additional hypothesis that the monodromy action of the inertia group is unipotent.

Keywords

Cite

@article{arxiv.1710.05902,
  title  = {Trace and Kunneth formulas for singularity categories and applications},
  author = {Bertrand Toën and Gabriele Vezzosi},
  journal= {arXiv preprint arXiv:1710.05902},
  year   = {2019}
}

Comments

47 pages, final submitted version

R2 v1 2026-06-22T22:15:38.522Z