***************************************************************************** * www.FindStat.org - The Combinatorial Statistic Finder * * * * Copyright (C) 2019 The FindStatCrew * * * * This information is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * ***************************************************************************** ----------------------------------------------------------------------------- Statistic identifier: St000205 ----------------------------------------------------------------------------- Collection: Integer partitions ----------------------------------------------------------------------------- Description: Number of non-integral Gelfand-Tsetlin polytopes with prescribed top row and partition weight. Given $\lambda$ count how many ''integer partitions'' $w$ (weight) there are, such that $P_{\lambda,w}$ is non-integral, i.e., $w$ such that the Gelfand-Tsetlin polytope $P_{\lambda,w}$ has at least one non-integral vertex. ----------------------------------------------------------------------------- References: [1] De Loera, Jesús A., McAllister, T. B. Vertices of Gelfand-Tsetlin polytopes [[MathSciNet:2096742]] ----------------------------------------------------------------------------- Code: ----------------------------------------------------------------------------- Statistic values: [1] => 0 [2] => 0 [1,1] => 0 [3] => 0 [2,1] => 0 [1,1,1] => 0 [4] => 0 [3,1] => 0 [2,2] => 0 [2,1,1] => 0 [1,1,1,1] => 0 [5] => 0 [4,1] => 0 [3,2] => 1 [3,1,1] => 0 [2,2,1] => 1 [2,1,1,1] => 0 [1,1,1,1,1] => 0 [6] => 0 [5,1] => 0 [4,2] => 1 [4,1,1] => 0 [3,3] => 1 [3,2,1] => 2 [3,1,1,1] => 0 [2,2,2] => 1 [2,2,1,1] => 1 [2,1,1,1,1] => 0 [1,1,1,1,1,1] => 0 [7] => 0 [6,1] => 0 [5,2] => 1 [5,1,1] => 0 [4,3] => 3 [4,2,1] => 4 [4,1,1,1] => 0 [3,3,1] => 3 [3,2,2] => 2 [3,2,1,1] => 2 [3,1,1,1,1] => 0 [2,2,2,1] => 2 [2,2,1,1,1] => 1 [2,1,1,1,1,1] => 0 [1,1,1,1,1,1,1] => 0 [8] => 0 [7,1] => 0 [6,2] => 1 [6,1,1] => 0 [5,3] => 3 [5,2,1] => 7 [5,1,1,1] => 0 [4,4] => 3 [4,3,1] => 5 [4,2,2] => 4 [4,2,1,1] => 4 [4,1,1,1,1] => 0 [3,3,2] => 5 [3,3,1,1] => 4 [3,2,2,1] => 5 [3,2,1,1,1] => 2 [3,1,1,1,1,1] => 0 [2,2,2,2] => 2 [2,2,2,1,1] => 2 [2,2,1,1,1,1] => 1 [2,1,1,1,1,1,1] => 0 [1,1,1,1,1,1,1,1] => 0 ----------------------------------------------------------------------------- Created: May 19, 2014 at 11:16 by Per Alexandersson ----------------------------------------------------------------------------- Last Updated: May 29, 2015 at 17:10 by Martin Rubey