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math.QA2019
On isotypic decompositions for non-semisimple Hopf algebras
Vincent Koppen, Ehud Meir, Christoph Schweigert
In this paper we study the isotypic decomposition of the regular module of a finite-dimensional Hopf algebra over an algebraically closed field of characteristic zero. For a semisi…
math.QA2019
Geometric perspective on Nichols algebras
Ehud Meir
We formulate the generation of finite dimensional pointed Hopf algebras by group-like elements and skew-primitives in geometric terms. This is done through a more general study of…