Localizing virtual structure sheaves by cosections

Abstract

We construct a cosection localized virtual structure sheaf when a Deligne-Mumford stack is equipped with a perfect obstruction theory and a cosection of the obstruction sheaf.

25 pages; published version

References in corpus (2)

• Mixed-Spin-P fields of Fermat quintic polynomials
• Invariants of pure 2-dimensional sheaves inside threefolds and modular forms