On refined enumerations of some symmetry classes of ASMs

On refined enumerations of some symmetry classes of ASMs
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关于 ASM 一些对称类的精细枚举

DOI:
10.1023/b:tamp.0000049757.07267.9d
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发表时间:
2003
期刊:
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影响因子:
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通讯作者:
Y. Stroganov
Y. Stroganov
中科院分区:
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文献类型:
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作者:
A. Razumov;Y. Stroganov

文献摘要

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使用行列式表示的分区功能的相应的变种方冰模型和我们最近提出的方法,我们调查的垂直对称交替符号矩阵,非对角对称交替符号矩阵,交替符号矩阵与U形转弯边界的精细枚举。对于所有这些情况下,我们发现明确的公式细化枚举。特别地,我们证明了Kutin-Yuen猜想。
Using determinant representations for partition functions of the corresponding variants of square-ice models and the method recently proposed by one of us, we investigate refined enumerations of vertically symmetric alternating-sign matrices, off-diagonally symmetric alternating-sign matrices, and alternating-sign matrices with a U-turn boundary. For all these cases, we find explicit formulas for refined enumerations. In particular, we prove the Kutin–Yuen conjecture.