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arXiv · 1002.3535

Combinatorial bases of modules for affine Lie algebra B_2^(1)

Mirko Primc
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Abstract

In this paper we construct bases of standard (i.e. integrable highest weight) modules $L(\Lambda)$ for affine Lie algebra of type $B_2\sp{(1)}$ consisting of semi-infinite monomials. The main technical ingredient is a construction of monomial bases for Feigin-Stoyanovsky type subspaces $W(\Lambda)$ of $L(\Lambda)$ by using simple currents and intertwining operators in vertex operator algebra theory. By coincidence $W(k\Lambda_0)$ for $B_2\sp{(1)}$ and the integrable highest weight module $L(k\Lambda_0)$ for $A_1\sp{(1)}$ have the same parametrization of combinatorial bases and the same presentation $\mathcal P/\mathcal I$\,.

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Mirko Primc. 2010-02-18. Combinatorial bases of modules for affine Lie algebra B_2^(1). https://arxiv.org/abs/1002.3535

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