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More on composition methods: error estimation and pseudo-symmetry

Presented by: 
Fernando Casas Universitat Jaume I
Date: 
Wednesday 21st August 2019 - 14:00 to 15:00
Venue: 
INI Seminar Room 2
Abstract: 
In this talk I will review composition methods for the time integration of differential equations, 
paying special attention to two recent contributions in this area. The first one is the construction 
of a new local error estimator so that the additional computational effort required is almost insignificant. 
The second one is related to a new family of high-order methods obtained from a basic symmetric 
(symplectic) scheme in such a way that they are time-symmetric (symplectic) only up to a certain order.





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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons