W. Auzinger, H. Hofstätter, D. Ketcheson, O. Koch:

"Practical splitting methods for the adaptive integration of nonlinear evolution equations. Part I: Construction of optimized schemes and pairs of schemes";

in: "ASC Report 25/2015", issued by: Institute for Analysis and Scientific Computing; Vienna University of Technology, Wien, 2015, ISBN: 978-3-902627-08-7, 1 - 16.

We present a number of new contributions to the topic of constructing efficient higher-order splitting methods for the numerical integration of evolution equations. Particular schemes are constructed via setup and solution of polynomial systems for the splitting coefficients. To this end we use and modify a recent approach for generating these systems for a large class of splittings. In particular, various types of pairs of schemes intended for use in adaptive integrators are constructed.

Evolution equations · splitting methods · free Lie algebra · order conditions · local error · embedded methods

http://www.asc.tuwien.ac.at/preprint/2015/asc25x2015.pdf

Project Head Othmar Koch:

Adaptives Splitting für nichtlineare Schrödingergleichungen

Created from the Publication Database of the Vienna University of Technology.