%0 Journal Article
%T The discrete variational principle in Hamiltonian formalism and first integrals<br>Hamilton形式的离散变分原理和第一积分
%A Zhang Hong-Bin
%A Chen Li-Qun
%A Liu Rong-Wan
%A <br>张宏彬
%A 陈立群
%A 刘荣万
%J 中国物理 B
%D 2005
%I 
%X The aim of this paper is to show that first integrals of discrete equation of motion for Hamiltonian systems can be determined explicitly by investigating the invariance properties of the discrete Lagrangian in phase space. The result obtained is a discrete analog of the theorem of Noether in the Calculus of variations.
%K 离散力学
%K Hamilton系统
%K 诺特定理
%K 第一积分
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=8BE957D694BD709D08258635EA336282&yid=2DD7160C83D0ACED&vid=F3583C8E78166B9E&iid=B31275AF3241DB2D&sid=EE05CC1F800E4629&eid=305A58D956DD6BAF&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=34