Theory of Heat Equations for Sigma Functions

Theory of Heat Equations for Sigma Functions
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西格玛函数的热方程理论

DOI:
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发表时间:
2017
期刊:
arXiv: Exactly Solvable and Integrable Systems
影响因子:
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通讯作者:
S. Yasuda
S. Yasuda
中科院分区:
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文献类型:
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作者:
J. C. Eilbeck;J. Gibbons;Y. Ônishi;S. Yasuda

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我们考虑与平面曲线相关的 sigma 函数满足的热方程,扩展和发展了 Buchstaber 和 Leykin 的早期开创性工作。这些热方程为西格玛函数的幂级数展开系数提供了有用的{\em线性}递归关系。特别是,我们展示了 3 格曲线的显式结果,并给出了超椭圆曲线理论中主矩阵的显式表达式的新的构造性证明。我们还陈述并证明了与该矩阵相关的线性算子特征值的新显式公式以及其他实用公式。
We consider the heat equations satisfied by the sigma function associated with a planar curve, extending and developing earlier pioneering work of Buchstaber and Leykin. These heat equations lead to useful {\em linear} recursive relations for the coefficients of power series expansion of the sigma function. In particular we exhibit explicit results for curves of genus 3, and give a new constructive proof of an explicit expression for the main matrix in the theory for {\em any} hyperelliptic curve. We also state and prove a new explicit formula for the eigenvalues of the linear operators associated with this matrix, as well as other practical formulae.
Sigma 函数作为 tau 函数
DOI: --
发表时间: 2010
期刊: Int.Math.Res.Not. 2010-3
影响因子: --
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Swinyard;et al.;谷口正信;山口喜雄;A.Nakayashiki
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DOI: --
发表时间: 2010
期刊: arXiv.org http://arxiv.org/abs/1003.2927
影响因子: --
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通讯作者: Yoshihiro Onishi
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