Jorge Sotomayor Tello

Jorge Manuel Sotomayor Tello (born 25 March 1942 in Lima) is a Peruvian-born Brazilian mathematician working on differential equations.
He earned his Ph.D. from the IMPA in 1964 under the supervision of Maurício Peixoto.
He is a recipient of Brazil's National Order of Scientific Merit in mathematics. Since 1994 he has been a member of the Brazilian Academy of Sciences.
He is the author of the textbooks Lições de Equações Diferenciais Ordinárias and Curvas Definidas por Equações Diferenciais no Plano. He has also translated essays of Henri Poincaré into the Portuguese, which were published on a book under the title Um Poeta, um Matemático e um Físico: Três Ensaios Biográficos por Henri Poincaré.

Selected publications

• "Generic one-parameter families of vector fields on two-dimensional manifolds", Publications Mathématiques de l'IHÉS.
• with F. Dumortier and R. Roussarie: "Generic 3-parameter families of vector fields on the plane, unfolding a singularity with nilpotent linear part. The cusp case of codimension 3", Ergodic Theory and Dynamical Systems.
• "with C. Gutiérrez: Structurally Stable Configurations of Lines of Principal Curvature", Astérisque.