23 Novembre, 2011 17:00
Seminario Matematico e Fisico di Milano
MULTIPLICITY OF PERIODIC SOLUTIONS OF PENDULUM-TYPE SYSTEMS WITH RELATIVISTIC ACCELERATION
Jean Mawhin, Université Catholique de Louvain
Università di Milano, Dipartimento di Matematica, Via Saldini
Abstract
Critical point theory is used to obtain multiplicity results for the periodic solutions of systems of differential equations of the form
$$
\left(\nabla \Phi(u^\prime)\right)^\prime
=\nabla_u F(t,u) + h(t).
$$