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Timeline for Weak operad and deloopings

Current License: CC BY-SA 3.0

6 events
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Dec 15, 2011 at 7:24 vote accept Ulrich Pennig
Dec 14, 2011 at 13:23 answer added user19952 timeline score: 6
Dec 14, 2011 at 12:20 answer added Justin Noel timeline score: 4
Dec 14, 2011 at 9:18 comment added Johannes Ebert Can't you take the realization of the singular simplicial sets of all spaces in question (this produces a contractible space out of a weakly contractible one) and get an action of an $E_{\infty}$-operad on $|Sing_{\bullet}X|$ which is weakly equivalent to $X$ and hence an infinite loop space?
Dec 14, 2011 at 8:12 comment added Fernando Muro It's unlikely since if $E_n$ is weakly contratible but not contractible then $E_n$ cannot be cofibrant (i.e. a retract of a CW-complex), so transfer results for algebras over operads begin to fail...
Dec 14, 2011 at 8:08 history asked Ulrich Pennig CC BY-SA 3.0