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arXiv math-ph/0703048math-phcond-mat.othermath.DSmath.MPnlin.CDphysics.class-ph
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长程相互作用和记忆系统的守恒律和Hamilton方程

Conservation Laws and Hamilton's Equations for Systems with Long-Range Interaction and Memory

Vasily E. Tarasov, George M. Zaslavsky

摘要:

利用广义作用量的变分极值在具有长程相互作用和长时记忆函数的系统中可导致分数阶动力学的事实,我们考虑了作用量原理的两种不同应用:广义Noether定理和Hamilton型方程。在第一种情况下,我们推导出守恒律的连续性方程,包括分数的时间-空间导数的形式。在这些结果的应用中,我们考虑了一个链的耦合振子与一个功率明智的记忆功能和功率明智的振荡器之间的相互作用。在第二种情况下,我们考虑一个分数阶微分作用1-形式的例子,并从形式的封闭条件中找到相应的Hamilton型方程。

英文摘要:

Using the fact that extremum of variation of generalized action can lead to the fractional dynamics in the case of systems with long-range interaction and long-term memory function, we consider two different applications of the action principle: generalized Noether's theorem and Hamiltonian type equations. In the first case, we derive conservation laws in the form of continuity equations that consist of fractional time-space derivatives. Among applications of these results, we consider a chain of coupled oscillators with a power-wise memory function and power-wise interaction between oscillators. In the second case, we consider an example of fractional differential action 1-form and find the corresponding Hamiltonian type equations from the closed condition of the form.

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