Mathematics – Dynamical Systems
Scientific paper
1999-09-16
Siberian Mathematical Journal, Vol.40, No.1, p.22-37
Mathematics
Dynamical Systems
21 pages, LaTeX, 5 PostScript Figures
Scientific paper
We study a connection between the isochronicity of a center of a polynomial vector field and the existence of a polynomial commuting system. We demonstrate an isochronous system of degree 4 which does not commute with any polynomial system. We prove that among the Newton polynomial systems only the Lienard and Abel systems may commute with transversal polynomial fields. We give a full and constructive description of centralizers of the Abel polynomial systems. We give new examples of isochronous systems.
Ivanov Valentin
Volokitin Evgenii P.
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