Talk:Path-ordering

Merge

Would it be appropriate to merge ordered exponential into this page (perhaps as a detailed example)? Akriasas (talk) 18:33, 14 December 2007 (UTC)[reply]

I agree that the ordered exponential is a special case of path ordering, but could it be viewed as an important enough example to warrant a separate page? I think so. I feel that ordered exponentials are related to Stone's theorem on one-parameter unitary groups, but they deserve separate pages. I think a physicist might find the (time-)Ordered exponential more concrete and therefore more appealing than the more general Path ordering concept, but that's just my opinion. --S.Wilson (talk) 12:51, 6 February 2008 (UTC)[reply]

The ordered exponential article also appears to be more general. This article deals only with bosonic and fermionic permutations; the other article, as currently written, seems to allow for more general commutation relations. 67.198.37.16 (talk) 22:30, 26 May 2024 (UTC)[reply]

Contribution of 196.224.27.85

No, this source (Richard Feynman in Volume I Section 39-3 "compressibility of radiation"; see [1]) does not support the claim. Not at all. I revert. See User talk:196.224.27.85 for the third warning. Boris Tsirelson (talk) 19:27, 22 August 2018 (UTC)[reply]

Strange phrase

"{T} is variable in dimension 4 like that of the black hole, but constant in dimension 3 ." (From Section "Time ordering".) I do not understand this phrase. Do you? Or should it be deleted? Boris Tsirelson (talk) 06:25, 27 May 2019 (UTC)[reply]

This phrase was added by the same anonymous user whose later content was removed by you for being unsourced. It can be safely removed - I have done so. --Qucumatz (talk) 16:16, 10 April 2021 (UTC)[reply]