Direct products and Ext1 contravariant functors

Event details
Date | 15.11.2013 |
Hour | 14:15 › 15:30 |
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.
Links
Practical information
- Informed public
- Free
Organizer
- Kathryn Hess Bellwald