Cup and cap products in intersection (co)homology

Details Cup and cap products in intersection (co)homology Cup and cap products in intersection (co)homology

2011-06-23

arxiv.org/abs/1106.4799v1

Mathematics

Algebraic Topology

44 pages

Scientific paper

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.

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