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Existência global de soluções para alguns sistemas de leis de conservação
(Universidade Federal de São Carlos, 2010-08-17) Ferreira, Ricardo Edem; Kondo, Cezar Issao; https://lattes.cnpq.br/0900348462714778; https://lattes.cnpq.br/1696477429814262
In this work, we studied the construction of weak solutions for some systems conservation laws and for a scalar conservation laws For the p-systems relativistic we use the Wave-front tracking based on Bressan, when the total variation of the initial data is locally bounded. We construct is somewhat more simpler than in methods studied by other authors. For the equation of Aw-Rascle we apply the method of Glimm and the method Wave-front tracking, we consider the appearence of the vacuum, when the total variation of the initial data is locally bounded. For the scalar conservation law we study the construction of admissible weak solutions using the Glimm method and the poligonal approximations.