The Tricomi equation can be expressed in symmetric positive form. Admissible boundary conditions assure existence and uniqueness of solutions. In this paper it is shown what boundary conditions are ...
https://doi.org/10.4169/college.math.j.48.1.18 https://www.jstor.org/stable/10.4169/college.math.j.48.1.18 We describe the fundamental theorem on symmetric ...
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