Timeline for Situations where extension of contraction is well-behaved?
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 7, 2022 at 8:47 | comment | added | Martin Brandenburg | Notice that the property means that $\varphi : \mathrm{Spec}(B) \to \mathrm{Spec}(A)$ satisfies a topological property: for all closed subsets $T \subseteq \mathrm{Spec}(B)$ we have $$T = \varphi^{-1}(\overline{\varphi(T)}).$$ | |
| S Nov 7, 2022 at 1:11 | review | First questions | |||
| Nov 7, 2022 at 3:24 | |||||
| S Nov 7, 2022 at 1:11 | history | asked | hello | CC BY-SA 4.0 |