Timeline for Spin structures on $S^1$ and Spin cobordism
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:19 | history | edited | CommunityBot |
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| Nov 27, 2012 at 17:41 | vote | accept | mkreisel | ||
| Nov 27, 2012 at 16:23 | answer | added | Paul Siegel | timeline score: 13 | |
| Nov 27, 2012 at 15:04 | comment | added | Fabian Lenhardt | The tangent bundle of the disk is indeed trivial, but the outward pointing normal vector field does not extend over the whole disk, so you cannot assume that it is part of a trivialization. I think this throws your argument off. | |
| Nov 27, 2012 at 14:49 | history | asked | mkreisel | CC BY-SA 3.0 |