Connectiion matrices for the continuous and discrete dynamics

Author(s)

Naiara Vergian de Paulo

• Document type: Master's Dissertation
• Press: Campinas, SP.
• Institution: Universidade Estadual de Campinas (UNICAMP). Instituto de Matemática, Estatística e Computação Científica
• Defense date: 2010-03-15

Examining board members

Ketty Abaroa de Rezende; Marco Antonio Feixeira; Mariana Rodrigues da Silveira

• Advisor: Ketty Abaroa de Rezende

Abstract

The goal of this work is to present the connection matrix by establishing a parallel between the continuous and discrete settings. The homological Conley index, the main element in the definition of the connection matrix, has a diferent form for flows or continuous maps. This index is a graded vector space in the continuous case whereas in the discrete case it takes the form of a pair consisting of a graded vector space together with an isomorphism. Consequently, the connection matrix for a Morse decomposition is defined diferently when we consider continuous or discrete dynamical systems. In the prior case, the connection matrix is a matrix of linear maps between the continuous Conley homology indices of Morse sets which codes the information of a graded vector space braid known as the continuous homology index braid. In the latter case, the connection matrix is a pair of matrices where the entries in both case are linear maps de?ned between the discrete Conley homology indices of Morse sets and, in this setting, this pair of matrices codes the information of a graded vector space braid with isomorphism known as discrete homology index braid. Although the Conley homology index and the connection matrix constitute purely algebraic elements, they are capable of providing dynamical information of a fow and of a continuous map. More precisely, these elements can detect the existence of connecting orbits among Morse sets of an isolated invariant set and examples of this situation are presented in this work. (AU)