English

Virtual normalization and virtual fundamental classes

Algebraic Geometry 2011-02-22 v1

Abstract

In this paper, we compare the virtual fundamental classes of the stacks of (g,β,μ)(g,\beta,\mu)-stable ramified maps Uˉg,μ(X,β)\bar{\mathfrak U}_{g,\mu}(X,\beta) and of (g,β,μ)(g,\beta,\mu)-log stable ramified maps Uˉg,μlog(X,β)\bar{\mathfrak U}^{\mathrm{log}}_{g,\mu}(X,\beta). For that we will see how they are identified via virtual normalization and then apply Costello's push-forward formula.

Cite

@article{arxiv.1102.4294,
  title  = {Virtual normalization and virtual fundamental classes},
  author = {Alberto López Martín},
  journal= {arXiv preprint arXiv:1102.4294},
  year   = {2011}
}

Comments

to appear in Proceedings of the American Mathematical Society

R2 v1 2026-06-21T17:29:29.597Z