Decomposition of tensor products of modular irreducible representations for $S{L}_3$ (With an Appendix by C.M. Ringel)

C. Bowman, S. R. Doty, S. Martin

We give an algorithm for working out the indecomposable direct summands in a Krull--Schmidt decomposition of a tensor product of two simple modules for G=SL_3 in characteristics 2…