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UID:20250918T175140EDT-1910vvEF1J@132.216.98.100
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DESCRIPTION:Beck modules for a monoid\n\nGiven an object X of a category C\
 , a Beck module for X is an abelian group object in the slice category C/X
 . For a ring R\, it is a 2-sided R-module\; for a group G\, it is a right 
 G-module\; for a commutative ring R\, it is just an R-module\; for a Lie a
 lgebra L it is the usual notion of L-module. These depend on the ambient c
 ategory of course. But when a student in Paris named Leonard Guetta asked 
 me what was a Beck module for a monoid\, I assumed it was an ordinary modu
 le. But I was wrong. I will describe what it actually is. Notes for the ta
 lk are available on the seminar webpage.\n
DTSTART:20171024T183000Z
DTEND:20171024T193000Z
LOCATION:Room 920\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:M. Barr\, 9IÖÆ×÷³§Ãâ·Ñ
URL:/mathstat/channels/event/m-barr-mcgill-279846
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