Abstract
AbstractThis survey provides an overview of numerous results on $p$
p
-permutation modules and the closely related classes of endo-trivial, endo-permutation and endo-$p$
p
-permutation modules. These classes of modules play an important role in the representation theory of finite groups. For example, they are important building blocks used to understand and parametrise several kinds of categorical equivalences between blocks of finite group algebras. For this reason, there has been, since the late 1990’s, much interest in classifying such modules. The aim of this manuscript is to review classical results as well as all the major recent advances in the area. The first part of this survey serves as an introduction to the topic for non-experts in modular representation theory of finite groups, outlining proof ideas of the most important results at the foundations of the theory. Simultaneously, the connections between the aforementioned classes of modules are emphasised. In this respect, results, which are dispersed in the literature, are brought together, and emphasis is put on common properties and the role played by the $p$
p
-permutation modules throughout the theory. Finally, in the last part of the manuscript, lifting results from positive characteristic to characteristic zero are collected and their proofs sketched.
Funder
Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
Publisher
Springer Fachmedien Wiesbaden GmbH
Subject
General Earth and Planetary Sciences,General Environmental Science
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