Jack vertex operators and realization of Jack functions

Details Jack vertex operators and realization of Jack functions Jack vertex operators and realization of Jack functions

2011-08-09

arxiv.org/abs/1108.2007v2

Mathematics

Combinatorics

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Scientific paper

We give an iterative method to realize general Jack functions from Jack functions of rectangular shapes. We first show some cases of Stanley's conjecture on positivity of the Littlewood-Richardson coefficients, and then use this method to give a new realization of Jack functions. We also show in general that vectors of products of Jack vertex operators form a basis of symmetric functions. In particular this gives a new proof of linear independence for the rectangular and marked rectangular Jack vertex operators. Thirdly a generalized Frobenius formula for Jack functions was given and was used to give new evaluation of Dyson integrals and even powers of Vandermonde determinant.

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