My research interests are mainly in the representation theory of finite groups, especially modular representations. I have (co)-authored over 100 research papers, and am pleased to include among my coauthors:

D.J. Benson, M. Broué, R. Bryant, J.F Carlson, C. Eaton, P. Flavell, R. Guralnick, I.M. Isaacs, R. Kessar, R. Knörr, L.G. Kovács, B. Külshammer, M. Linckelmann, G. Navarro, J.B. Olsson, P. Sin, R. Staszewski, M. Thiel, J.G. Thompson and A. Turull.