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5. Noether-type theorem for discrete nonconservative dynamical systems with nonregular lattices

Noether-type theorem for discrete nonconservative dynamical systems with nonregular lattices

来源 :中国科学：物理学、力学、天文学英文版 | 被引量 : 0次 | 上传用户：yin2002cn2008

【摘 要】

：

We investigate Noether symmetries and conservation laws of the discrete nonconserved systems with nonregular lattices. The operators of discrete transformation

【出 处】

：

中国科学：物理学、力学、天文学英文版

【发表日期】

：

2010年3期

【关键词】

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NOETHER symmetry VARIATIONAL formula quasi-extremal equation conservation law DI 

【基金项目】

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supported by the National Natural Science Foundation of China (Grant Nos. 10672143 and 60575055)

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We investigate Noether symmetries and conservation laws of the discrete nonconserved systems with nonregular lattices. The operators of discrete transformation and discrete differentiation to the right and left are introduced for the systems. Based on the

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