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Understanding Finite Dimensional Representations Generically

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Geometric and Topological Aspects of the Representation Theory of Finite Groups (PSSW 2016)

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Abstract

We survey the development and status quo of a subject best described as “generic representation theory of finite dimensional algebras”, which started taking shape in the early 1980s. Let \({\Lambda }\) be a finite dimensional algebra over an algebraically closed field. Roughly, the theory aims at (a) pinning down the irreducible components of the standard parametrizing varieties for the \({\Lambda }\)-modules with a fixed dimension vector, and (b) assembling generic information on the modules in each individual component, that is, assembling data shared by all modules in a dense open subset of that component. We present an overview of results spanning the spectrum from hereditary algebras through the tame non-hereditary case to wild non-hereditary algebras.

Dedicated to Dave Benson on the occasion of his sixtieth birthday

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Correspondence to B. Huisgen-Zimmermann .

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Goodearl, K.R., Huisgen-Zimmermann, B. (2018). Understanding Finite Dimensional Representations Generically. In: Carlson, J., Iyengar, S., Pevtsova, J. (eds) Geometric and Topological Aspects of the Representation Theory of Finite Groups. PSSW 2016. Springer Proceedings in Mathematics & Statistics, vol 242. Springer, Cham. https://doi.org/10.1007/978-3-319-94033-5_6

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