Timeline for Getting the most general form of Mayer-Vietoris from the Eilenberg-Steenrod axioms
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 19, 2021 at 5:48 | comment | added | Ken | There is an article by Richard Steiner, similar in spirit to your approach, written exactly for this purpose. | |
| S Dec 18, 2018 at 0:36 | history | bounty ended | Johannes Hahn | ||
| S Dec 18, 2018 at 0:36 | history | notice removed | Johannes Hahn | ||
| Dec 18, 2018 at 0:36 | vote | accept | Johannes Hahn | ||
| Dec 17, 2018 at 3:09 | history | edited | David Roberts♦ | CC BY-SA 4.0 |
Fixed typo in Barratt's name
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| Dec 17, 2018 at 1:46 | answer | added | John Rognes | timeline score: 7 | |
| S Dec 16, 2018 at 22:28 | history | bounty started | Johannes Hahn | ||
| S Dec 16, 2018 at 22:28 | history | notice added | Johannes Hahn | Draw attention | |
| Oct 9, 2017 at 15:33 | comment | added | Dan Ramras | I think what you want is actually in the original Eilenberg-Steenrod book. Look at the discussion of Mayer-Vietoris in Section 15. You can find the pdf here: www.maths.ed.ac.uk/~aar/papers/eilestee.pdf | |
| Oct 8, 2017 at 18:59 | comment | added | Dylan Wilson | (You have a pushout of (* <--- * ---> *) shaped diagrams and you'd like to know if the colimit of the pushout of diagrams is the pushout of the colimits, and the answer is yes.) | |
| Oct 8, 2017 at 18:57 | comment | added | Dylan Wilson | (Homotopy) colimits commute with (homotopy) colimits so the answer should be 'yes' (modulo me not knowing point-set topology enough to confidently assert anything is an 'excisive triad'). | |
| Oct 8, 2017 at 17:34 | history | asked | Johannes Hahn | CC BY-SA 3.0 |