Timeline for Quotient of a category by a free group action
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| May 2, 2010 at 20:06 | history | edited | Dan Ramras | CC BY-SA 2.5 |
added link
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| Apr 27, 2010 at 5:40 | history | edited | Dan Ramras | CC BY-SA 2.5 |
added 37 characters in body
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| Apr 27, 2010 at 5:40 | comment | added | Dan Ramras | Ah, I see. I think this saved me from a fair amount of time-wasting. I'll leave the answer up, as a warning... | |
| Apr 27, 2010 at 4:52 | comment | added | Mariano Suárez-Álvarez | If the action is not free on objects, you have choices when picking the $g$ which makes the morphisms "match up". | |
| Apr 27, 2010 at 4:52 | comment | added | Reid Barton | What if I take C = BH, where H is a group with an action of G? I think the quotient category will be B(H with the relations x = gx for all x in H imposed), whose set of morphisms will be different from the set of orbits for the action of G on H as a set. | |
| Apr 27, 2010 at 4:42 | history | answered | Dan Ramras | CC BY-SA 2.5 |