Matrix kernels for measures on partitions

Details Matrix kernels for measures on partitions Matrix kernels for measures on partitions

2008-04-15

arxiv.org/abs/0804.2419v2

Physics

Mathematical Physics

21 pages

Scientific paper

10.1007/s10955-008-9641-9

We consider the problem of computation of the correlation functions for the z-measures with the deformation (Jack) parameters 2 or 1/2. Such measures on partitions are originated from the representation theory of the infinite symmetric group, and in many ways are similar to the ensembles of Random Matrix Theory of $\beta=4$ or $\beta=1$ symmetry types. For a certain class of such measures we show that correlation functions can be represented as Pfaffians including $2\times 2$ matrix valued kernels, and compute these kernels explicitly. We also give contour integral representations for correlation kernels of closely connected measures on partitions.

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