Dianbin Bao, Temple University
We will go over the results in Section 1.5 and 1.6 in "Cohomology of Number Fields". We will focus on properties of the cohomology groups $H^n(G,A)$ if we change the group $G$, in particular the properties of restriction and corestriction maps and the $p$-primary part of $\widehat{H}^n(G, A)$.