Skip to main content
17 events
when toggle format what by license comment
Apr 1 at 22:52 answer added Kirti Joshi timeline score: 6
Mar 27 at 15:51 answer added Kirti Joshi timeline score: 35
Feb 6 at 2:35 answer added Kirti Joshi timeline score: 25
Jul 13, 2023 at 7:51 answer added Kirti Joshi timeline score: 31
S Jun 26, 2023 at 16:35 vote accept Madeleine Birchfield
Nov 25, 2022 at 12:31 comment added Will Sawin @PiotrAchinger The relevant data can also be described as "a family of spaces, each of whose fundamental groups is isomorphic to ..., parameterized by ...".
Nov 25, 2022 at 11:05 comment added Piotr Achinger Can anybody explain to me the precise meaning of "family of isomorphs of ... parametrized by ..."?
Nov 25, 2022 at 1:13 comment added David Roberts For those interested, Joshi has made some additional comments in this blog post: thehighergeometer.wordpress.com/2022/11/25/… (initially Joshi reached out to me in order to respond at this question—he isn't an MO user—but I thought that the intended purpose of MO made this not so amenable)
Nov 22, 2022 at 20:33 history became hot network question
Nov 22, 2022 at 16:50 vote accept Madeleine Birchfield
S Jun 26, 2023 at 16:35
Nov 22, 2022 at 15:15 comment added David Roberts I think "nonredundancy claim" is a really rubbery phrase. Mochizuki uses the word "redundant" in his expository documents to talk about his own formalism of diagrams he wishes to take colimits of, where there are multiple abstractly isomorphic objects (he claims you literally need an injective functor coding the diagram). Joshi is talking about existence of nontrivial "arithmetic" deformations. It may be that Mochizuki's expository documents are more like extended soft metaphors, but the examples he gives are so far from the actual problems at hand they are not so useful.
Nov 22, 2022 at 14:39 answer added Will Sawin timeline score: 39
Nov 22, 2022 at 13:14 answer added Peter Scholze timeline score: 67
Nov 22, 2022 at 13:11 history edited YCor
edited tags
Nov 22, 2022 at 12:46 history edited Martin Sleziak
edited tags
Nov 22, 2022 at 12:46 history edited Madeleine Birchfield CC BY-SA 4.0
edited title
Nov 22, 2022 at 12:32 history asked Madeleine Birchfield CC BY-SA 4.0