English

Torus localization and wall crossing for cosection localized virtual cycles

Algebraic Geometry 2015-02-03 v1

Abstract

Since its introduction in 1995 by Li-Tian and Behrend-Fantechi, the theory of virtual fundamental class has played a key role in algebraic geometry, defining important invariants such as the Gromov-Witten invariant and the Donaldson-Thomas invariant. Quite a few methods for handling the virtual fundamental classes were discovered such as torus localization, degeneration, virtual pullback and cosection localization. Often combining these methods turns out to be quite effective. In this paper, we prove virtual pullback, torus localization and wall crossing formulas for cosection localized virtual cycles.

Keywords

Cite

@article{arxiv.1502.00078,
  title  = {Torus localization and wall crossing for cosection localized virtual cycles},
  author = {Huai-Liang Chang and Young-Hoon Kiem and Jun Li},
  journal= {arXiv preprint arXiv:1502.00078},
  year   = {2015}
}

Comments

18 pages

R2 v1 2026-06-22T08:17:25.309Z