Extensions of modules for twisted current algebras
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DOI: 10.1016/j.jalgebra.2019.02.015
Abstract: Twisted current algebras are fixed point subalgebras of current algebras under a finite group action. Special cases include equivariant map algebras and twisted forms of current algebras. Their finite-dimensional simple modules fall into two categories,… read more here.
Keywords: dimensional simple; finite dimensional; twisted current; modules twisted ... See more keywords
Rigid Sides of Approximately Finite-Dimensional Simple Operator Algebras in Non-Separable Category
Sign Up to like & getrecommendations! Published in 2019 at "International Mathematics Research Notices"
DOI: 10.1093/imrn/rnz079
Abstract: Applying Popa’s orthogonality method to a new class of groups, we construct amenable group factors that are prime and have no infinite-dimensional regular abelian $\ast$-subalgebras. By adjusting Farah–Katsura’s solution of Dixmier’s problem to the von… read more here.
Keywords: sides approximately; dimensional simple; finite dimensional; approximately finite ... See more keywords