Victor H. L. Rocha is a Professor at the São Paulo State University, Brazil. He completed his PhD studies at the State University of Maringá, Brazil. His research interests include geometry and topology, more specifically topological dynamics, dynamical systems, geometric control theory, and Lie theory.
Josiney A. Souza is a Professor at the State University of Maringá, Brazil. He holds a PhD in Mathematics from the State University of Campinas, Brazil. Dr. Souza’s research interests lie in control system, topological dynamics, and Lie theory. He has published two books and more than fifty articles on attractors, Morse decomposition, chain transitivity, stability, controllability, recursiveness, dispersiveness, and uniformities.