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Tokuyama's Identity for Factorial Schur Functions (1501.03561v1)
Published 15 Jan 2015 in math.CO
Abstract: A paper of Bump, McNamara and Nakasuji introduced a factorial version of Tokuyama's identity, expressing the partition function of a six vertex model as the product of a t-deformed Vandermonde and a Schur function. Here we provide an extension of their result by exploiting the language of primed shifted tableaux, with its proof based on the use of non-intersecting lattice paths.