The symplectic mapping class group of $\CC P^2 n{\bar{\CC P^2}}$ with $n\leq4$
Symplectic Geometry
2014-05-06 v2
Abstract
In this paper we prove that the Torelli part of the symplectomorphism groups of the -point () blow-ups of the projective plane is trivial. Consequently, we determine the symplectic mapping class group. It is generated by reflections on spherical class with zero area.
Cite
@article{arxiv.1310.7329,
title = {The symplectic mapping class group of $\CC P^2 n{\bar{\CC P^2}}$ with $n\leq4$},
author = {Jun Li and Tian-Jun Li and Weiwei Wu},
journal= {arXiv preprint arXiv:1310.7329},
year = {2014}
}