(1) Dipartimento di Metodi Matematici, Universitá di Roma La Sapienza,, 00161 Rome, Italy;(2) Departamento de Matemática Aplicada, Instituto de Matemática e Estatística, Universidade de São Paulo, São Paulo-SP, Brazil
Abstract:
We consider a special class of monotone dynamical systems and show that in this special class the stable and unstable manifolds of two hyperbolic periodic orbits always intersect transversally. The proof is based on the existence of a family of positively invariant nested cones.This paper is dedicated to Jack Hale on the occasion of his 60th birthday.