Timeline for $\mathbb{Z}/2\mathbb{Z}$ coefficients in gysin sequence
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 5, 2020 at 10:41 | comment | added | Diego95 | I do not know. It seems to me that in the article they always have these orientability construction. Maybe since they are working with double covers it is easier to compute the $\mathbb{Z}/2\mathbb{Z}$-homology? | |
| Mar 4, 2020 at 16:14 | comment | added | John Greenwood | To apply the Gysin sequence with $\mathbb{Q}$-coefficient you need an orientability condition on your bundle. Maybe they want to circumvent that? | |
| Mar 4, 2020 at 11:43 | history | asked | Diego95 | CC BY-SA 4.0 |