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arXiv · 0706.1528

$H_D$-Quantum Vertex Algebras and Bicharacters

Iana I. Anguelova·Maarten J. Bergvelt
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Abstract

We define a new class of quantum vertex algebras, based on the Hopf algebra $H_D=\mathbb{C}[D]$ of "infinitesimal translations" generated by $D$. Besides the braiding map describing the obstruction to commutativity of products of vertex operators, $H_D$-quantum vertex algebras have as main new ingredient a "translation map" that describes the obstruction of vertex operators to satisfying translation covariance. The translation map also appears as obstruction to the state-field correspondence being a homomorphism. We use a bicharacter construction of Borcherds to construct a large class of $H_D$-quantum vertex algebras. One particular example of this construction yields a quantum vertex algebra that contains the quantum vertex operators introduced by Jing in the theory of Hall-Littlewood polynomials.

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Iana I. Anguelova, Maarten J. Bergvelt. 2007-06-11. $H_D$-Quantum Vertex Algebras and Bicharacters. https://arxiv.org/abs/0706.1528

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