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arXiv 0904.2284nlin.SImath.RA
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离散可积系统与结合代数的变形

Discrete integrable systems and deformations of associative algebras

B. G. Konopelchenko

摘要:

本文综述了结合代数结构常数的离散变形与离散可积系统之间的相互关系。给出了结合代数的变形理论。由乘法表的元素生成的闭左理想在这个理论中起着核心作用。结构常数的变形由变形驱动代数产生,并由中心方程组控制。证明了许多离散方程如离散Boussinesq方程、离散WDVV方程、离散Schwarzian KP和BKP方程、KP族和BKP族的离散Hirota-Miwa方程都是中心系统的特殊实现。离散可积系统理论与结合代数的离散变形之间的相互作用是互惠的和富有成果的,特别是Menelaus关系(离散Schwarzian KP方程)的解释,KP族的离散Hirota-Miwa方程,作为结合性条件的立方体周围的相容性以及规范等价的概念,例如Menelaus和KP组态之间的规范等价。

英文摘要:

Interrelations between discrete deformations of the structure constants for associative algebras and discrete integrable systems are reviewed. A theory of deformations for associative algebras is presented. Closed left ideal generated by the elements representing the multiplication table plays a central role in this theory. Deformations of the structure constants are generated by the Deformation Driving Algebra and governed by the central system of equations. It is demonstrated that many discrete equations like discrete Boussinesq equation, discrete WDVV equation, discrete Schwarzian KP and BKP equations, discrete Hirota-Miwa equations for KP and BKP hierarchies are particular realizations of the central system. An interaction between the theories of discrete integrable systems and discrete deformations of associative algebras is reciprocal and fruitful.An interpretation of the Menelaus relation (discrete Schwarzian KP equation), discrete Hirota-Miwa equation for KP hierarchy, consistency around the cube as the associativity conditions and the concept of gauge equivalence, for instance, between the Menelaus and KP configurations are particular examples.

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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