Virtual pull-backs
Algebraic Geometry
2011-08-10 v2 Mathematical Physics
math.MP
Abstract
We propose a generalization of Gysin maps for DM-type morphisms of stacks that admit a perfect relative obstruction theory , which we call a "virtual pull-back". We prove functoriality properties of virtual pull-backs. As applications, we analyze Gromov-Witten invariants of blow-ups and projective bundles.
Keywords
Cite
@article{arxiv.0805.2065,
title = {Virtual pull-backs},
author = {Cristina Manolache},
journal= {arXiv preprint arXiv:0805.2065},
year = {2011}
}
Comments
Major revision, application added