Timeline for Why are differential forms called closed and exact?
Current License: CC BY-SA 4.0
8 events
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| Jul 30, 2022 at 11:03 | history | edited | Glorfindel | CC BY-SA 4.0 |
broken link fixed, cf. https://math.meta.stackexchange.com/a/34713/228959
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| Jun 15, 2020 at 7:27 | history | edited | CommunityBot |
Commonmark migration
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| Aug 17, 2011 at 16:46 | comment | added | Andreas Blass | In the appendix of his book "Abelian Categories," Peter Freyd says that the terminology "exact sequence" was suggested by "exact differentials" (pg. 157). He reports having heard about this from Eilenberg and Steenrod themselves. [But he also writes (pg. 155) "The origin of concepts, even for a scholar, is very difficult to trace. For a nonscholar such as me, it is easier. But less accurate."] | |
| Dec 6, 2010 at 22:13 | history | edited | Theo Buehler | CC BY-SA 2.5 |
added 133 characters in body; added 1 characters in body
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| Dec 6, 2010 at 21:59 | comment | added | Theo Buehler | You're absolutely right, I was too quick, but I still like this account of the origin of the term "exact" in algebra, so I leave the answer here. It certainly is related, but feel free to vote it down. | |
| Dec 6, 2010 at 21:57 | comment | added | Charles Rezk | Me too. And though I can imagine that the two uses (sequences, forms) of the word "exact" are related, I have no evidence for it. Anyone? | |
| Dec 6, 2010 at 21:54 | comment | added | Andrei Moroianu | I thought the question was about exact forms, not exact sequences... | |
| Dec 6, 2010 at 21:48 | history | answered | Theo Buehler | CC BY-SA 2.5 |