Date: 2026-08-04 04:39 pm (UTC)
dmm: (Default)
From: [personal profile] dmm
Спасибо!

Очень интересно (утверждение, что "disagreement is handled by cohomology", this might be the missing piece for me).

Date: 2026-08-04 04:43 pm (UTC)
dmm: (Default)
From: [personal profile] dmm
Oh, and the author is super-interesting, he has this draft book: https://www.davidjaz.com/Papers/DynamicalBook.pdf

Date: 2026-08-04 06:41 pm (UTC)
dmm: (Default)
From: [personal profile] dmm
Книжка упоминает когомологии только в одном месте, но очень интересным образом:

pp. 253-254:

"If instead of sets we were working with homotopy types, then
level 0 would still be elements, and level −1 would be identifications between these
elements, and −2 identifications between these identifications, and so on. In general,
the negative levels would have (increasingly abelian) cohomological information about
the positive levels."

Date: 2026-08-04 07:51 pm (UTC)
dmm: (Default)
From: [personal profile] dmm
Thanks. Yes, time scale differences are likely to be particularly non-trivial. (I suspect that those differences which are well captured by the cohomological approach are "spatial" in a generalized sense of the word, and generalization to temporal aspects would need further non-trivial work.)

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