Luís Barreira

Luís Barreira (born 25 September 1968) is a Portuguese mathematician and a professor in the department of mathematics of Instituto Superior Técnico.

He is the author or coauthor of 13 books, many with Clàudia Valls, including among them Análise Complexa e Equações Diferenciais, Exercícios de Análise Complexa e Equações Diferenciais, Lyapunov Exponents and Smooth Ergodic Theory, Nonuniform Hyperbolicity, Stability of Nonautonomous Differential Equations, and Dimension and Recurrence in Hyperbolic Dynamics. He's also the author of several scientific articles, predominantly in Differential Equations, Dynamic Systems, Ergodic Theory and Multifractal Analysis. Provided by Wikipedia