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Homotopy theory, homological algebra, algebraic treatments of manifolds.

2 votes

Jones' theorem for non-simply-connected spaces?

The more natural statement is already in Goodwillie's Cyclic homology, derivations, and the free loopspace, namely that if $X$ is connected, then choose a base point $x \in X$ and consider $C_{*}(\Ome …
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  • 121
7 votes
1 answer
423 views

Meaning of the first Chern class of the unit tangent bundle of a surface

(This is a fairly basic question, not really research level, except that I am a research mathematician working on other things who is trying to understand more topology for use in my own work.) Let $\ …
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  • 121