Two short proofs of the topological invariance of intersection homology
Greg Friedman
Journal of Singularities
volume 25 (2022), 144-149
Received: 18 December 2020. Received in revised form: 29 January 2021.
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Abstract:
We indicate two short proofs of the Goresky-MacPherson topological invariance of intersection homology on CS sets. One proof is very short but requires the Goresky-MacPherson support and cosupport axioms; the other is slightly longer but does not require these axioms and so is adaptable to more general perversities.
2000 Mathematical Subject Classification:
Primary: 55N33, 57N80; Secondary: 55N30
Key words and phrases:
intersection homology, topological invariance, CS set, pseudomanifold, intrinsic stratification
Author(s) information:
Greg Friedman
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