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27 April 2024

» arxiv » math/0602159

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The determinant of q-distance matrices of trees and permutation statistics
Weigen Yan ; Yeong-Nan Yeh ;
Date:	8 Feb 2006
Subject:	Combinatorics
Abstract:	In this paper we prove that two quantities about permutation statistics on trees are independent of the structures of trees. We also find that these results are closely related to the remarkable one obtained by Graham and Pollak (Bell System Tech. J. 50(1971) 2495-2519) and by Bapat, Kirkland and Neumann (Linear Alg. Appl. 401(2005) 193-209).
Source:	arXiv, math/0602159
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