Central extensions of groups of symplectomorphisms
Differential Geometry
2013-02-08 v3 Symplectic Geometry
Abstract
We construct some canonically defined central extensions of groups of symplectomorphisms. We show that this central extension is nontrivial in the case of a torus of dimension and in the case of a two-dimensional surface of genus .
Cite
@article{arxiv.math/0406213,
title = {Central extensions of groups of symplectomorphisms},
author = {Yurii A. Neretin},
journal= {arXiv preprint arXiv:math/0406213},
year = {2013}
}
Comments
30 pp, 4 fig. This is a corrected (2006) version