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A superunitary Fock model of the exceptional Lie supergroup $\mathbb{D}(2,1;α)$ (2301.07982v2)

Published 19 Jan 2023 in math.RT

Abstract: We construct a Fock model of the minimal representation of the exceptional Lie supergroup $\mathbb{D}(2,1, \alpha)$. Explicit expressions for the action are given by integrating to group level a Fock model of the Lie superalgebra $D(2,1, \alpha)$ constructed earlier by the authors. It is also shown that the representation is superunitary in the sense of de Goursac--Michel.

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