Timeline for Calculating degree via homotopy
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Jan 7, 2023 at 2:21 | vote | accept | Eugene | ||
| Jan 6, 2023 at 23:21 | history | became hot network question | |||
| Jan 6, 2023 at 17:28 | review | Close votes | |||
| Jan 11, 2023 at 3:07 | |||||
| Jan 6, 2023 at 17:06 | comment | added | mme | Choose a generic ray from 0 to infinity, one which is transverse to F and intersects S^{n-1} in exactly one point p. Taking F^{-1}(r) gives a 1-manifold whose boundary consists of F^{-1}(0), f_1^{-1)(p), and f_2^{-1}(p) all oriented appropriately. After working out signs your formula follows from the fact that an oriented boundary of a compact 1-manifold is zero. | |
| Jan 6, 2023 at 16:54 | answer | added | Dylan Wilson | timeline score: 6 | |
| Jan 6, 2023 at 15:21 | history | edited | Eugene | CC BY-SA 4.0 |
deleted 4 characters in body
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| S Jan 6, 2023 at 15:20 | review | First questions | |||
| Jan 6, 2023 at 17:41 | |||||
| S Jan 6, 2023 at 15:20 | history | asked | Eugene | CC BY-SA 4.0 |