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Geometric Numerical Integration and Schrodinger Equations PDF

146 Pages·2012·2.454 MB·English
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by Erwan Faou| 2012| 146 pages| 2.454| English

About Geometric Numerical Integration and Schrodinger Equations

The goal of geometric numerical integration is the simulation of evolution equations possessing geometric properties over long times. Of particular importance are Hamiltonian partial differential equations typically arising in application fields such as quantum mechanics or wave propagation phenomena. They exhibit many important dynamical features such as energy preservation and conservation of adiabatic invariants over long time. In this setting, a natural question is how and to which extent the reproduction of such long time qualitative behavior can be ensured by numerical schemes.Starting from numerical examples, these notes provide a detailed analysis of the Schrödinger equation in a simple setting (periodic boundary conditions, polynomial nonlinearities) approximated by symplectic splitting methods. Analysis of stability and instability phenomena induced by space and time discretization are given, and rigorous mathematical explanations for them.The book grew out of a graduate level course and is of interest to researchers and students seeking an introduction to the subject matter.

Detailed Information

Author:Erwan Faou
Publication Year:2012
ISBN:9783037191002
Pages:146
Language:English
File Size:2.454
Format:PDF
Price:FREE
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