Direct products and Ext1 contravariant functors

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Event details

Date 15.11.2013
Hour 14:1515:30
Speaker Claudiu Valculescu (EPFL)
Location
MA 10
Category Conferences - Seminars
Using inequalities between infinite cardinals, I will show that, if R is an hereditary ring, then the contravariant derived functor Ext1R(−,G) commutes with direct products if and only if G is an injective R-module.

Practical information

  • Informed public
  • Free

Organizer

  • Kathryn Hess Bellwald

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