Timeline for Necessity/Motivation for generalised homomorpisms
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 26, 2018 at 9:04 | vote | accept | Praphulla Koushik | ||
| Jun 25, 2018 at 14:47 | comment | added | Praphulla Koushik | I have posted an answer, please see if I have got it correctly... your comments would be helpful :) | |
| Jun 25, 2018 at 13:44 | comment | added | Praphulla Koushik | I think I understand to some extent. Please give some time, I will respond. | |
| Jun 25, 2018 at 10:33 | comment | added | Nicola Ciccoli | Whatever "an orbifold map" is (and if you know what it is you know that it is not completely easy to define it) if $V_i$ is the orbit space of $G_i\ltimes M_i\rightrightarrows M_i$ there is no reason to expect that a map $V_1\to V_2$ lifts to a groupoid map $G_1\ltimes M_1$ to $G_2\ltimes M_2$.Maps between orbit spaces of groupoids does not imply the existence of a groupoid morphism. | |
| Jun 25, 2018 at 10:23 | comment | added | Praphulla Koushik | I do not completely understand... For an orbifold, there may be two presentations.. This is ok but I don’t understand “And you cannnot expect to lift any orbifold map to any possible such presentation.” | |
| Jun 25, 2018 at 10:18 | vote | accept | Praphulla Koushik | ||
| Jun 25, 2018 at 10:18 | |||||
| Jun 25, 2018 at 5:08 | history | answered | Nicola Ciccoli | CC BY-SA 4.0 |