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Hello world! Welcome to my brief webpage

I have been a Full Professor since 1993 at the University of Nevada Las Vegas, in Las Vegas, Nevada.

I moved with my family to the United States in 1992, after being a faculty at the Universidade de Brasilia, in Brasilia, Brazil, since 1975. During my permanence in Brazil, I was a visiting scholar at various institutions in the United States, Italy, Portugal, Spain, China, and Australia. In Brazil, I also served the mathematical community both as Treasurer and Vice President of the Brazilian Mathematical Society (SBM), as well as member of the Advisory Committee of the National Research Council of Brazil (CNPq).

I have a Ph.D. degree in Mathematics from Brown University obtained in 1973 under the supervision of Prof. Walter Strauss and, prior to that, an Electrical Engineering degree in 1967 from the Universidade Federal de Pernambuco, in Recife, Brazil.

My main research interests are in Partial Differential Equations (PDEs), particularly through the use of variational and topological methods from Nonlinear Analysis.