Cup and cap products in intersection (co)homology
Algebraic Topology
2013-11-13 v2 Geometric Topology
Abstract
We construct cup and cap products in intersection (co)homology with field coefficients. The existence of the cap product allows us to give a new proof of Poincare duality in intersection (co)homology which is similar in spirit to the usual proof for ordinary (co)homology of manifolds.
Cite
@article{arxiv.1106.4799,
title = {Cup and cap products in intersection (co)homology},
author = {Greg Friedman and James McClure},
journal= {arXiv preprint arXiv:1106.4799},
year = {2013}
}
Comments
49 pages; some revisions; to appear in Advances in Mathematics