Intersection homology with general perversities |
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Authors: | Greg Friedman |
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Institution: | 1.Texas Christian University,Fort Worth,USA |
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Abstract: | We study intersection homology with general perversities that assign integers to stratum components with none of the classical
constraints of Goresky and MacPherson. We extend Goresky and MacPherson’s axiomatic treatment of Deligne sheaves, and use
these to obtain Poincaré and Lefschetz duality results for these general perversities. We also produce versions of both the
sheaf-theoretic and the piecewise linear chain-theoretic intersection pairings that carry no restrictions on the input perversities. |
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Keywords: | |
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