Let F be a field, GL_v(F) the general linear group over F, and v≥2. Let I be the identity matrix of order v, J the matrix of order v whose entries are all l’s,
The matrix C of Cartan invariants is one of the aspects in modular representation theory. The nature of the entries in C remains somewhat mysterious. One entry of C,in which we are mainly interested here, is C11, the ...