Introduction:
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Many problems of an applied nature reduce to finding specific solutions and properties of equations of mixed type; in particular, problems of plane transonic flow of a compressible medium, and problems in the theory of envelopes. This session will discuss various parts of the theory of mixed type differential equations with/without boundary conditions such as: classical dynamical equation of mixed type, the theory of regularity of solutions, quasi-regularity of solutions in the classical sense etc. |
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