Nilpotent blocks and their source algebras.
Non-commutative matrix integrals and representation varieties of surface groups in a finite group
A new formula is established for the asymptotic expansion of a matrix integral with values in a finite-dimensional von Neumann algebra in terms of graphs on surfaces which are orientable or non-orientable.
Normal p-Complements and Irreducible Characters.
Note on the Integral Group Ring Problem.