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Results tagged with at.algebraic-topology
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user 119286
Homotopy theory, homological algebra, algebraic treatments of manifolds.
8
votes
0
answers
244
views
Clarification of Tillmann's construction of the higher genus surface operad
Sorry if this question is inappropriate for overflow. I tried asking on stackexchange yesterday but didn't get any responses, so I thought that this site might be better. Anyway, my question is as fol …
- 383
16
votes
2
answers
1k
views
Are mapping class groups of orientable surfaces good in the sense of Serre?
A group G is called ‘good’ if the canonical map $G\to\hat{G}$ to the profinite completion induces isomorphisms $H^i(\hat{G},M)\to H^i(G,M)$ for any finite $G$-module $M$. I’ve had multiple academics i …
- 383