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Subalgebras of a $q$-analog for the Virasoro algebra

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Abstract

We define subalgebras V_q^{mZ times nZ} of V_q where V_qare in the paper cite{KPS}. We show that the Lie algebra V_q^{mZtimes nZ} is simple and maximally abelian decomposing. We maydefine a Lie algebra is maximally abelian decomposing, if it has amaximally abelian decomposition of it. The F-algebraautomorphism group of the Laurent extension of the quantum planeis found in the paper cite{KPS}, so we find the Lie automorphismgroup of V_q^{mZtimes nZ} in this paper.

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