Classification of irreducible non-zero level quasifinite modules over twisted affine Nappi-Witten algebra

Abstract

We obtain that every irreducible quasifinite module with non-zero level over the twisted affine Nappi-Witten algebra is either a highest weight module or a lowest one.

Keywords

Twisted affine Nappi-Witten algebra / quasifinite module / weight module

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Higher Education Press and Springer-Verlag Berlin Heidelberg