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arXiv 0906.3445math.CO
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四分之一圈旋转下偶数大小(拟)不变的交替符号矩阵的Enumeration

Enumeration of alternating sign matrices of even size (quasi)-invariant under a quarter-turn rotation

Jean-Christophe Aval, Philippe Duchon

摘要:

这项工作的目的是列举交替符号矩阵(ASM)下的四分之一转是准不变的。计数公式(由Duchon提出)涉及,作为三项的乘积,无限制ASM的数量和半圈对称ASM的数量。

英文摘要:

The aim of this work is to enumerate alternating sign matrices (ASM) that are quasi-invariant under a quarter-turn. The enumeration formula (conjectured by Duchon) involves, as a product of three terms, the number of unrestricted ASM's and the number of half-turn symmetric ASM's.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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