Browsing by CNPq Subject "CIENCIAS EXATAS E DA TERRA::MATEMATICA::ANALISE::EQUACOES DIFERENCIAIS ORDINARIAS"
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On the classification of two dimensional flows
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Matemática - PPGM, Câmpus São Carlos, 02/08/2023)Lawrence Markus, a well-known mathematician, published, in 1954, a strong result about classification of planar vector fields. Afterwards, Dean Arnold Neumann generalized such work for continuous flows, and the result ... -
16º problema de Hilbert: uma motivação para o estudo de funções periódicas
(Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Ensino de Ciências Exatas - PPGECE, Câmpus São Carlos, 22/02/2022)Periodic situations are found in many aspects of general knowledge, such as the measurement of hours in a day, the movement of the waves and the translation of celestial bodies. Perhaps this is why the study of journals ...