Date:	Fri, November 6, 2009
Time:	11:15
Place:	Research I Seminar Room

Abstract: I will give a general overview on the technique of backward error analysis to prove the approximate preservation of invariants over long times by symplectic numerical integration schemes. I will also sketch some recent results in collaboration with C. Wulff (Surrey) on the application of these ideas to Hamiltonian partial differential equations.