Ext and its applications?

Who?
Hannah Enders (HU Berlin)
When?
2012/07/13, 16:00
Where?
HU, RUD 25 1.023
From the module of homomorphisms $Hom(M,N)$ between two modules $M$ and $N$, one can derive other modules $Ext^i (M,N)$, for all $i$. These modules contain certain information about $M$ and $N$. We will show how to construct $Ext$ explicitly and give some further results on how to use it.