Schur function expansions of KP τ-functions associated to algebraic curves

Schur function expansions of KP τ-functions associated to algebraic curves
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与代数曲线相关的 KP τ 函数的 Schur 函数展开

DOI:
10.1070/rm2011v066n04abeh004755
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发表时间:
2010
影响因子:
0.9
通讯作者:
V. Z. Enol'skii
V. Z. Enol'skii
中科院分区:
数学2区
文献类型:
--
作者:
Дж Харнад;J. Harnad;Виктор Зеликович Энольский;V. Z. Enol'skii

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讨论了Sato-西格尔-威尔逊Kp-函数的Schur函数展开。详细研究了与任意亏格的代数曲线有关的-函数的情况。利用Riemann函数或Klein函数沿Kp流动方向的方向导数,得到了展开式中出现的Plücker坐标系数的显式表达式。利用基本双微分,证明了系数可以用Klein的高亏格的魏尔斯特拉斯函数的推广来表示。给出了亏格为2的超椭圆曲线和亏格为3的三角曲线的具体算例。参考书目:53种。
The Schur function expansion of Sato-Segal-Wilson KP -functions is reviewed. The case of -functions related to algebraic curves of arbitrary genus is studied in detail. Explicit expressions for the Plücker coordinate coefficients appearing in the expansion are obtained in terms of directional derivatives of the Riemann -function or Klein -function along the KP flow directions. By using the fundamental bi-differential it is shown how the coefficients can be expressed as polynomials in terms of Klein's higher-genus generalizations of Weierstrass' - and -functions. The cases of genus-two hyperelliptic and genus-three trigonal curves are detailed as illustrations of the approach developed here. Bibliography: 53 titles.
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: --
作者:
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DOI: --
发表时间: 2011
期刊: J.Geom. (To appear)
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