Author: Akihiko Hida, ahida@math.edu.saitama-u.ac.jp, Faculty of Education, Saitama University Title: Control of fusion and cohomology of trivial source modules Abstract: Let $G$ be a finite group and $H$ a subgroup. We give an algebraic proof of Mislin's theorem which states that the restriction map from $G$ to $H$ on mod-$p$ cohomology is an isomorphism if and only if $H$ controls $p$-fusion in $G$. Current status: preprint