Timeline for Milnor's conjecture on Lie group (co)homology and forgetful functor of extensions
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Mar 9, 2019 at 17:31 | comment | added | D.-C. Cisinski | If we restrict to algebraic groups over the field of complex numbers, the two conjectures are equivalent because étale cohomology and singular cohomology agree with finite coefficients for complex algebraic varieties. | |
| Mar 9, 2019 at 17:23 | comment | added | Tsemo Aristide | @Denis-CharlesCisinski Thank you for your link. The FM Milnor conjectures is the MIlnor conjecture in the Etale topos. It is true that their formulation are similar. I would look at the reference pointed in the link to see if there exist a relation between the techniques used by Milnor in his paper and the techniques used in algebraic geometry. | |
| Mar 9, 2019 at 16:54 | comment | added | D.-C. Cisinski | See this question : mathoverflow.net/a/166245 | |
| Mar 9, 2019 at 13:10 | history | edited | YCor | CC BY-SA 4.0 |
added link to Milnor, completed title
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| Mar 9, 2019 at 13:08 | comment | added | YCor | I'm pretty sure that Milnor's conjecture is still open. However, I'm unable to point to any survey or account of progress made at any point on this conjecture since it was asserted. | |
| Mar 9, 2019 at 13:04 | comment | added | YCor | Beware that the usual, closely related Ext in homological algebra is denoted in the reverse convention (the OP's $Ext(G,H)$, as defined in the linked question, would rather usually be denoted $Ext(H,G)$). | |
| Mar 9, 2019 at 13:02 | history | edited | YCor |
edited tags
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| Mar 9, 2019 at 0:14 | history | asked | Tsemo Aristide | CC BY-SA 4.0 |