On 2-blocks with minimal nonabelian defect groups II

We determine the structure of 2-blocks with minimal nonabelian defect groups, by making use of the classification of finite simple groups.Comment: 7 page

Blocks with transitive fusion systems

Suppose that all nontrivial subsections of a $p$-block $B$ are conjugate (where $p$ is a prime). By using the classification of the finite simple groups, we prove that the defect groups of $B$ are either extraspecial of order $p^3$ with $p \in \{3,5\}$ or elementary abelian

On blocks and source algebras

On blocks and source algebras : an invitation. - In: Bayreuther mathematische Schriften. 33. 1990. S. 109-13