Infinite-dimensional 3-algebra and integrable system
Infinite-dimensional 3-algebra and integrable system
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DOI：
10.1007/jhep12(2012)030
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发表时间：
2012-01
影响因子：
5.4
通讯作者：
Min-Ru Chen;Shi-kun Wang;Ke Wu;Wei-zhong Zhao
中科院分区：
文献类型：
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作者：
Min-Ru Chen;Shi-kun Wang;Ke Wu;Wei-zhong Zhao
本文研究了无限维3-代数与无色散KdV族之间的关系。在无限维3-代数的基础上，我们得到了两个相容的Nambu Hamilton结构。然后从Nambu-Poisson演化方程给出合适的哈密顿量，无色散KdV族。我们发现无色散KdV系统不仅是一个双Hamilton系统，而且还是一个双Nambu-Hamilton系统。由于Nambu-Poisson演化方程包含两个哈密顿量，揭示了这些哈密顿量之间更有趣的关系。作为应用，我们研究了多方气体方程组，并在Nambu力学的框架下导出了一个可积气体动力学系统。
A bstractThe relation between the infinite-dimensional 3-algebras and the dispersionless KdV hierarchy is investigated. Based on the infinite-dimensional 3-algebras, we derive two compatible Nambu Hamiltonian structures. Then the dispersionless KdV hierarchy follows from the Nambu-Poisson evolution equation given the suitable Hamiltonians. We find that the dispersionless KdV system is not only a bi-Hamiltonian system, but also a bi-Nambu-Hamiltonian system. Due to the Nambu-Poisson evolution equation involving two Hamiltonians, more intriguing relationships between these Hamiltonians are revealed. As an application, we investigate the system of polytropic gas equations and derive an integrable gas dynamics system in the framework of Nambu mechanics.