• Hipoelipticidade, resolubilidade e formas normais para campos vetoriais no toro 

      Rampazo, Patrícia Yukari Sato; http://lattes.cnpq.br/9047808021065602 (Universidade Federal de São CarlosUFSCarPrograma de Pós-graduação em MatemáticaCâmpus São Carlos, 2015-04-24)
      The main aim of this work is to study a class of real vector elds de ned on a torus, where the concepts of global hypoellipticity, global C1 solvability and reduction to its normal form are equivalents. We also study a ...