Winkel, Rudolf An exponential formula for polynomial vector fields. II: Lie series, exponential substitution, and rooted trees. (English) Zbl 0969.34006 Adv. Math. 147, No. 2, 260-303 (1999). MSC: 34A25 15A69 34A05 34C99 68W30 × Cite Format Result Cite Review PDF Full Text: DOI
Murua, A. Formal series and numerical integrators. I: Systems of ODEs and symplectic integrators. (English) Zbl 0929.65126 Appl. Numer. Math. 29, No. 2, 221-251 (1999). Reviewer: T.E.Simos (Xanthi) MSC: 65P10 34A09 65L05 37M15 65L80 × Cite Format Result Cite Review PDF Full Text: DOI