Welington de Melo

Welington Celso de Melo was a Brazilian mathematician. Known for his contributions to dynamical systems theory, he served as full professor at Instituto Nacional de Matemática Pura e Aplicada from 1980 to 2016. Melo wrote numerous papers, one being a complete description of the topological behavior of 1-dimensional real dynamical systems.
He proved the global hyperbolicity of renormalization for Cʳ unimodal maps. He was a recipient of the 2003 TWAS Prize.