Timeline for Question about spin map
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
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| Apr 18, 2022 at 15:12 | comment | added | Sebastian Goette | The bundle $SN\otimes f^*SM$ would be a spinor bundle for $TN\oplus f^*TM$, which has second Stiefel-Whitney class $w_2(TN)+f^*w_2(TM)+w_1(TN)\smile f^*w_1(TM)$. So unless both manifolds are nonorientable, your description is correct. | |
| Apr 15, 2022 at 6:02 | history | asked | Radeha Longa | CC BY-SA 4.0 |