Timeline for Rank 2 complex vector bundles over $S^2\times S^2$
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Oct 4, 2016 at 8:29 | vote | accept | DLIN | ||
| Aug 9, 2016 at 7:50 | comment | added | Mark Grant | Well, the set $\langle S^2\times S^2, U(2)\rangle$ certainly has a group structure (since $U(2)$ is an H-space), but I do not know if $\langle S^2\times S^2, BU(2)\rangle$ admits a group structure, because $BU(2)$ is not an H-space. | |
| Aug 9, 2016 at 4:58 | comment | added | DLIN | Does the sequence mean the homotopic class $[S^2\times S^2,U(2)]$ has a group structure? If so, how to define the group structure? Thanks | |
| Jul 21, 2016 at 8:59 | history | answered | Mark Grant | CC BY-SA 3.0 |