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Finite Aomoto-Ito-Macdonald sums
Authors:Ana-Cecilia de la Maza
Institution:Instituto de Matemática y Física, Universidad de Talca, Casilla 747, Talca, Chile
Abstract:We present finite truncations of the Aomoto-Ito-Macdonald sums associated with root systems through a two-step reduction procedure. The first reduction restricts the sum from the root lattice to a Weyl chamber; the second reduction arises after imposing a truncation condition on the parameters, and gives rise to a finite sum over a Weyl alcove.

Keywords:Multivariate basic hypergeometric series  summation formulas  root systems
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