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Третья Российско-Китайская научная конференция по комплексному анализу, алгебре, алгебраической геометрии и математической физике
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Theory of normal forms of linear second order mixed type PDEs on the plane A. A. Davydovab a Vladimir State University b Lomonosov Moscow State University |
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Аннотация: This theory originates from the known treatise by F.Tricomi (1923), in which normal form for such an equation was proposed near a typical point of type change line, at which the characteristic direction is not tangent to the line. The correct proof for this form was given a decade later by M.Cibrario. Язык доклада: английский |
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