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On the theory of equations of mixed type. (Russian) Zbl 0503.35065

MSC:

35M99 Partial differential equations of mixed type and mixed-type systems of partial differential equations
35F15 Boundary value problems for linear first-order PDEs
35D05 Existence of generalized solutions of PDE (MSC2000)
35A05 General existence and uniqueness theorems (PDE) (MSC2000)

Citations:

Zbl 0081.312
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