$Pin$-structures on surfaces and quadratic forms
dg-ga
2008-02-03 v1 微分几何
摘要
A correspondence between different -type structures on a compact surface and quadratic (linear) forms on its homology is constructed. Addition of structures is defined and expressed in terms of these quadratic forms.
引用
@article{arxiv.dg-ga/9507002,
title = {$Pin$-structures on surfaces and quadratic forms},
author = {A. Degtyarev and S. Finashin},
journal= {arXiv preprint arXiv:dg-ga/9507002},
year = {2008}
}
备注
5 pages, AMS-TeX, no Figures