Dynamical Systems and Bifurcations [electronic resource] : Proceedings of a Workshop held in Groningen The Netherlands, April 16–20, 1984 / edited by Boele L. J. Braaksma, Hendrik W. Broer, Floris Takens.

An elementary proof of the conley — Zehnder theorem in symplectic geometry -- An "A-Priori" estimate for oscillatory-equations -- On the structure of germs of vector fields in ?3 whose linear part generates rotations -- Fixed point results for symplectic maps related to the arnold - conjecture -- Topological invariants as numbers of translation -- Abelian integrals and global hopf bifurcations -- On the numerical determination of the dimension of an attractor -- Global stability of generic two-parameter families of gradients on three-manifolds.