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arXiv 0912.5296math-phmath.MP
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构造变系数耗散动力系统标准和非标准拉格朗日量的直接方法

A direct approach to the construction of standard and non-standard Lagrangians for dissipative dynamical systems with variable coefficients

Jan L. Cieslinski, Tomasz Nikiciuk

摘要:

我们提出了一个直接的方法来建设的拉格朗日为一大类的一维动力系统与一个简单的依赖(单项或多项式)的速度。我们重新推导和推广最近的一些结果,并找到拉格朗日公式,这似乎是新的。一些被考虑的系统(例如,摩擦与速度和速度的平方成比例的运动)允许不同拉格朗日公式的无限族。

英文摘要:

We present a direct approach to the construction of Lagrangians for a large class of one-dimensional dynamical systems with a simple dependence (monomial or polynomial) on the velocity. We rederive and generalize some recent results and find Lagrangian formulations which seem to be new. Some of the considered systems (e.g., motions with the friction proportional to the velocity and to the square of the velocity) admit infinite families of different Lagrangian formulations.

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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