Skip to main content
7 events
when toggle format what by license comment
Dec 4, 2019 at 3:59 comment added Andy Putman There are still many basic open questions about topological 4-manifolds, especially ones with complicated fundamental groups (which are not covered by Freedman's work). It is true that progress has stalled on the subject to a certain degree.
Dec 3, 2019 at 20:46 history edited Sam Hopkins CC BY-SA 4.0
added 27 characters in body
Dec 3, 2019 at 20:40 history undeleted Sam Hopkins
Dec 3, 2019 at 20:40 history edited Sam Hopkins CC BY-SA 4.0
added 27 characters in body
Dec 3, 2019 at 20:38 history deleted Sam Hopkins via Vote
S Dec 3, 2019 at 20:34 history answered Sam Hopkins CC BY-SA 4.0
S Dec 3, 2019 at 20:34 history made wiki Post Made Community Wiki by Sam Hopkins