On endosplit $p$-permutation resolutions and Broué's conjecture for $p$-solvable groups

Abstract: Endosplit $p$-permutation resolutions play an instrumental role in verifying Brou\'{e}'s abelian defect group conjecture in numerous cases. In this article, we give a complete classification of endosplit $p$-permutation resolutions and reduce the question of Galois descent of an endosplit $p$-permutation resolution to the Galois descent of the module it resolves. This is shown using techniques from the study of endotrivial complexes, the invertible objects of the bounded homotopy category of $p$-permutation modules. As an application, we show that a refinement of Brou\'{e}'s conjecture proposed by Kessar and Linckelmann holds for blocks of $p$-solvable groups $G$ satisfying $G = O_{p',p,p'}(G)$.