On Endo-trivial Modules for p-Solvable Groups

We prove a conjecture of J. Carlson, N. Mazza and J. Thévenaz; namely, we will prove that if $G$ is a finite $p$-nilpotent group which contains a non-cyclic elementary Abelian $p$-subgroup and $k$ is an algebraically closed field of characteristic $p$, then all simple endo-trivial $kG$-modules are $1$-dimensional.

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