Algebraic Structures of B-series
B-series are a fundamental tool in practical and theoretical aspects of numerical integrators for ordinary differential equations. A composition law for B-series permits an elegant derivation of order conditions, and a substitution law gives much insight into modified differential equations of backward error analysis. These two laws give rise to algebraic structures (groups and Hopf algebras of trees) that have recently received much attention also in the non-numerical literature. This article emphasizes these algebraic structures and presents interesting relationships among them.
Keywords: B-series ; Rooted trees ; Composition law ; Substitution law ; Butcher group ; Hopf algebra of trees ; Coproduct ; Antipode ; P-series ; S-series ; Moser-Veselov Algorithm ; Runge-Kutta Methods ; Differential-Equations ; Numerical Integrators ; Rooted-Trees ; Hopf Algebra ; Rigid-Body ; Renormalization ; Systems
Record created on 2011-12-16, modified on 2016-08-09