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Simulating Hamiltonian Dynamics
Benedict LeimkuhlerSebastian Reich
出版Cambridge University Press, 2004
主題Mathematics / Differential Equations / GeneralMathematics / Geometry / GeneralMathematics / Mathematical AnalysisMathematics / Numerical AnalysisScience / Chemistry / Physical & TheoreticalScience / Mechanics / GeneralTechnology & Engineering / Materials Science / General
ISBN05217729079780521772907
URLhttp://books.google.com.hk/books?id=tpb-tnsZi5YC&hl=&source=gbs_api
EBookSAMPLE
註釋Geometric integrators are time-stepping methods, designed such that they exactly satisfy conservation laws, symmetries or symplectic properties of a system of differential equations. In this book the authors outline the principles of geometric integration and demonstrate how they can be applied to provide efficient numerical methods for simulating conservative models. Beginning from basic principles and continuing with discussions regarding the advantageous properties of such schemes, the book introduces methods for the N-body problem, systems with holonomic constraints, and rigid bodies. More advanced topics treated include high-order and variable stepsize methods, schemes for treating problems involving multiple time-scales, and applications to molecular dynamics and partial differential equations. The emphasis is on providing a unified theoretical framework as well as a practical guide for users. The inclusion of examples, background material and exercises enhance the usefulness of the book for self-instruction or as a text for a graduate course on the subject.