Electronic Journal of Differential Equations,
Vol. 2000(2000), No. 75, pp. 1-10.

Title: Non-collision solutions for a class of planar singular Lagrangian systems

Author:  Morched Boughariou (Campus Universitaire, Tunisie)
          
Abstract: 
In this paper, we show the existence of non-collision periodic solutions of 
minimal period for a class of singular second order Hamiltonian systems 
in ${\bf R}^2$ with weak forcing terms.
We  consider the fixed period problem and the fixed energy problem 
in the autonomous case.

Submitted September 18, 2000. Published December 15, 2000.
Math Subject Classifications: 35D05, 35D10, 58E30.
Key Words: Singular Lagrangian system; periodic solution; non-collision.