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Harish-Chandra modules for map and affine Lie superalgebras

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arxiv 2104.07517 v3 pith:FYCWKZIE submitted 2021-04-15 math.RT

classification math.RT
keywords modulessimpleboundedclassificationsuperalgebrascuspidalmoduleaffine
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We obtain a classification of simple modules with finite weight multiplicities over basic classical map superalgebras. Any such module is parabolic induced from a simple cuspidal bounded module over a cuspidal map superalgebra. Further on, any simple cuspidal bounded module is isomorphic to an evaluation module. As an application, we obtain a classification of all simple Harish-Chandra modules for basic classical loop superalgebras. Extending these results to affine Kac-Moody Lie superalgebras obtained by adding the degree derivation, we construct a family of bounded simple modules of level zero, and conjecture that all bounded simple cuspidal modules belong to this family. Finally, we show that for affine Kac-Moody Lie superalgebras of type I the Kac induction functor reduces the classification of all simple bounded modules to the classification of the same class of modules over the even part, whose classification is claimed by Dimitrov and Grantcharov.

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  1. Whittaker Modules for W type Cartan Lie superalgebras

    math.RT 2025-11 conditional novelty 6.0 of 10

    Every simple non-singular Whittaker module of the Witt superalgebra W_{m,n} is a subquotient of a tensor module built from a finite-dimensional gl(m,n)-module.

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