A recursion formula for k-Schur functions

被引:0
作者
Bravo, Daniel [1 ]
Lapointe, Luc [2 ]
机构
[1] Wesleyan Univ, Dept Math & Comp Sci, Middletown, CT 06459 USA
[2] Univ Talca, Inst Matemat & Fis, Casilla 747, Talca, Chile
关键词
Symmetric functions; Schur functions; Bernstein operators; k-Schur functions;
D O I
10.1016/j.jcta.2008.12.001
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The Bernstein operators allow one to build recursively the Schur functions. We present a recursion formula for k-Schur functions at t = 1 based on combinatorial operators that generalize the Bernstein operators. The recursion leads immediately to a combinatorial interpretation for the expansion coefficients of k-Schur functions at t = 1 in terms of homogeneous symmetric functions. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:918 / 935
页数:18
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