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71.
二阶非Четаев型非完整系统的守恒律 总被引:7,自引:2,他引:5
研究二阶非ЧeTaeB型完整系统的守恒律,引入Jourdain生成元,给出无限小变换下Jour-dain原理的不变性条件,在一定条件下得到系统的守恒律,并举例说明结果的应用。 相似文献
72.
By introducing the quasi-symmetry of the infinitesimal transformation of the transformation group Gr, the Noether's theorem and the Noether's inverse theorem for generalized linear nonholonomic mechanical systems are obtained in a generalized compound derivative space. An example is given to illustrate the application of the result. 相似文献