Hecke algebras Representations of groups 3 Group algebras 2 Algebras, Linear 1 C*-algebras 1 Crossed products 1 Finite groups 1 Geometry, Projective 1 Group theory 1 Homology theory 1 Linear algebraic groups 1 Mathematics 1 Modular representations of groups 1 Non-Abelian groups 1 Orthogonal polynomials 1 Superalgebras 1 Symmetry groups 1