Acta scientiarum naturalium Universitatis Pekinensis
It is dealed with that oblique derivative problems for quasilinear equations of mixed type with parabolic degeneracy, which include the Tricomi problem for Chaplygin equation as a special case. Firstly the formulation of the problems is given, and then the existence and uniqueness of solutions for the problems are proved by using a new complex analytic method.
WEN Guochun. Oblique Derivative Problems for Second Order Quasilinear Equations of Mixed Type with Parabolic Degeneracy[J].Acta scientiarum naturalium Universitatis Pekinensis, 2006, 42(3): 285-293.
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