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The L-Homology Fundamental Class for IP-...
Banagl, Markus...
The L-Homology Fundamental Class for IP-Spaces and the Stratified Novikov Conjecture by Banagl, Markus ( Author )
Australian National University
01-09-2023
An IP-space is a pseudomanifold whose defining local properties imply that its middle perversity global intersection homology groups satisfy Poincar\'e duality integrally. We show that the symmetric signature induces a map of Quinn spectra from IP bordism to the symmetric $L$-spectrum of $\Z$, which is, up to weak equivalence, an $E_\infty$ ring map. Using this map, we construct a fundamental $L$-homology class for IP-spaces, and as a consequence we prove the stratified Novikov conjecture for IP-spaces.
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Article
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29.34 KB
English
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MYR 0.01
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http://arxiv.org/abs/1404.5395
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