On enumeration problems in Lie-Butcher theory


H. Munthe-Kaas and S. Krogstad

To appear in Special Issue of FCGS

Abstract:
The algebraic structure underlying non-commutative Lie-Butcher series is the free Lie algebra over ordered trees. In this paper we present a characterization of this algebra in terms of balanced Lyndon words over a binary alphabet. This yields a systematic manner of enumerating terms in non-commutative Lie-Butcher series.
Submitted by stein@ii.uib.no Tue, 9 Oct 2002

Email of author:
hans@ii.uib.no
steinr@ii.uib.no

URL of author:
http://www.ii.uib.no/~hans/

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2002-010