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航天器运行系统大都属于变质量力学系统,变质量力学系统的对称性和守恒量隐含着航天系统更深刻的物理规律.本文首先导出了变质量完......

研究变质量非Четаев型非完整系统的Mei对称性和守恒量，给出其在相空间的Mei对称性的定义和判据，得到Mei对称性的结构方程和守......

The Mei symmetry and the Lie symmetry of a rotational relativistic variable mass system are studied. The definitions and......

The definition and criterion of the Mei symmetry of a relativistic variable mass system are given. The relation between ......