Orbifold techniques in degeneration formulas
Algebraic Geometry
2014-08-06 v2 Symplectic Geometry
Abstract
We give an approach for relative and degenerate Gromov--Witten invariants, inspired by that of Jun Li but replacing predeformable maps by transversal maps to a twisted target. The main advantage is a significant simplification in the definition of the obstruction theory. We reprove in our language the degeneration formula, extending it to the orbifold case.
Cite
@article{arxiv.1103.5132,
title = {Orbifold techniques in degeneration formulas},
author = {Dan Abramovich and Barbara Fantechi},
journal= {arXiv preprint arXiv:1103.5132},
year = {2014}
}
Comments
Some material which is now in arXiv:1406.2166 and in arXiv:1110.2976 was removed