Timeline for Pullback by surjective submersion is injective?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 30 at 2:43 | comment | added | Carlos Esparza | I think you just need to pick a "product" coordinate neighborhood $U \cong U_1 \times U_2$ inside $\Phi^{-1}(W)$. Knowing that $\Phi^* f = 0$ in that neighborhood allows you to conclude that $f$ is zero on $\Phi(U) \cong U_2$. | |
| Oct 20 at 11:38 | history | asked | psl2Z | CC BY-SA 4.0 |