Timeline for $A_{\infty}$ structure of (co)homology of a space
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
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| Nov 25, 2010 at 9:52 | comment | added | Jeffrey Giansiracusa | yup. In fact, you can get an $E_\infty$ coalgebra structure on $C_*X$ and hence on $H_*X$, and an $E_\infty$ algebra structure on $C^*X$ and hence on $H^*(X)$ by transfer of structure (probably you need field coefficients, but not necessarily char zero). | |
| Nov 25, 2010 at 6:50 | history | edited | Romeo | CC BY-SA 2.5 |
edited title
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| Nov 25, 2010 at 6:34 | comment | added | Kevin H. Lin | I guess $C_\ast(X)$ has a dg coalgebra structure, and thus $H_\ast(X)$ has a "co-$A_\infty$" structure ... ? | |
| Nov 25, 2010 at 2:01 | history | edited | Romeo | CC BY-SA 2.5 |
added 171 characters in body
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| Sep 28, 2010 at 9:36 | vote | accept | Romeo | ||
| Sep 15, 2010 at 21:10 | answer | added | Jeffrey Giansiracusa | timeline score: 6 | |
| Sep 15, 2010 at 16:53 | history | asked | Romeo | CC BY-SA 2.5 |