Cup and cap products in intersection (co)homology
classification
🧮 math.AT
math.GT
keywords
homologyintersectionproductsproofallowscoefficientsconstructduality
read the original 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.
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