Welington de Melo

Welington de Melo
Melo in 1973
Born(1946-11-17)17 November 1946
Died21 December 2016(2016-12-21) (aged 70)
NationalityBrazilian
Alma materInstituto Nacional de Matemática Pura e Aplicada
Known forContributions to dynamical systems theory
Scientific career
FieldsMathematics
InstitutionsInstituto Nacional de Matemática Pura e Aplicada (1974–2016)
Thesis Structural Stability of Diffeomorphisms on Two-Manifolds  (1973)
Doctoral advisorJacob Palis
Doctoral studentsArtur Avila

Welington Celso de Melo (17 November 1946 – 21 December 2016) 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 (co-authored with Marco Martens and Sebastian van Strien). He proved the global hyperbolicity of renormalization for Cr unimodal maps (co-authored with Alberto Pinto and Edson de Faria). He was a recipient of the 2003 TWAS Prize.