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Bosonic Formulas for Affine Branching Functions
E. B. Feiginab a P. N. Lebedev Physical Institute, Russian Academy of Sciences
b Independent University of Moscow
Abstract:
In this paper, we derive two bosonic (alternating sign) formulas for branching functions of affine Kac–Moody Lie algebras $\mathfrak{g}$. Both formulas are expressed in terms of the Weyl group and string functions of $\mathfrak{g}$.
Keywords:
Kac–Moody algebra, branching function, BGG-resolution.
Received: 15.05.2006
Citation:
E. B. Feigin, “Bosonic Formulas for Affine Branching Functions”, Funktsional. Anal. i Prilozhen., 42:1 (2008), 63–77; Funct. Anal. Appl., 42:1 (2008), 53–64
Linking options:
https://www.mathnet.ru/eng/faa2891https://doi.org/10.4213/faa2891 https://www.mathnet.ru/eng/faa/v42/i1/p63
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Abstract page: | 431 | Full-text PDF : | 226 | References: | 40 | First page: | 12 |
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