BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20251007T040101EDT-3434XV9gAb@132.216.98.100 DTSTAMP:20251007T080101Z DESCRIPTION:The regular category embedding theorem\n\nAbstract:I have given two apparently different the regular category embedding theorem. The firs t\, gotten by adapting the Lubkin's argument for the abelian category\, is rather opaque. The second\, gotten by adapting Mitchell's proof is much m ore elegant. Mitchell used Grothendieck's theorem that an AB5 category wit h a generator has an injective cogenerator. However\, the analogous result for regular categories fails. It turns out that full injectivity is not n eeded. Surprisingly\, it turns out that ``under the hood'' the two proofs are really doing much the same thing. It is using functors rather than rep resenting diagrams that makes the difference.\n DTSTART:20161206T193000Z DTEND:20161206T203000Z LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue Sherbrooke Ouest SUMMARY:M. Barr\, ɬÀï·¬ URL:/mathstat/channels/event/m-barr-mcgill-264599 END:VEVENT END:VCALENDAR