INTEGRATORS

作品数：29被引量：35H指数：3
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相关领域：自动化与计算机技术更多>>
相关作者：吴俊吴新元更多>>
相关机构：南京大学曲阜师范大学南京信息工程大学更多>>
相关期刊：《Chinese Physics B》《Applied Mathematics and Mechanics(English Edition)》《ZTE Communications》《Annals of Applied Mathematics》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划河南省自然科学基金国家教育部博士点基金更多>>
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HIGH-ORDER SYMPLECTIC AND SYMMETRIC COMPOSITION METHODS FOR MULTI-FREQUENCY AND MULTI-DIMENSIONAL OSCILLATORY HAMILTONIAN SYSTEMS
《Journal of Computational Mathematics》2015年第4期356-378,共23页Kai Liu Xinyuan Wu 
The multi-frequency and multi-dimensional adapted Runge-Kutta^NystrSm （ARKN） integrators, and multi-frequency and multi-dimensional extended Runge-Kutta-NystrSm （ERKN） integrators have been developed to efficientl...
关键词：Symplectic and symmetric composition methods Multi-frequency and multi-dimensional ERKN integrators ARKN integrators Multi-frequency oscillatory Hamiltonian systems. 
Optimized third-order force-gradient symplectic algorithms被引量：3
《Science China(Physics,Mechanics & Astronomy)》2010年第9期1600-1609,共10页LI Rong & WU Xin School of Science,Nanchang University,Nanchang 330031,China 
supported by the NationalNatural Science Foundation of China (Grant No.10873007);supported by the Science Foundation of Jiangxi Education Bureau (Grant No.GJJ09072);the Program for Innovative Research Team of Nanchang University
With the natural splitting of a Hamiltonian system into kinetic energy and potential energy,we construct two new optimal thirdorder force-gradient symplectic algorithms in each of which the norm of fourth-order trunca...
关键词：SYMPLECTIC INTEGRATORS SYMPLECTIC scheme-shooting METHOD celestial mechanics time-independent Schrdinger equation energy eigenvalues numerical stability BISECTION METHOD topological structure 
Symplectic-energy-first integrators of discrete mechanico-electrical dynamical systems被引量：1
《Chinese Physics B》2008年第11期3942-3952,共11页傅景礼 陈本永 唐贻发 付昊 
Project supported by the National Natural Science Foundation of China (Grant Nos 10672143 and 60575055);the State Key Laboratory of Scientific and Engineering Computing, Chinese Academy of Sciences;the Natural Science Foundation of Henan Province Government, China (Grant No 0511022200)
A discrete total variation calculus with variable time steps is presented for mechanico-electrical systems where there exist non-potential and dissipative forces. By using this discrete variation calculus, the symplec...
关键词：total variation symplectic-energy-momentum integrator mechanico-electrical system 
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