scientific article

zbMATH Open0492.35078MaRDI QIDQ3954232

Peter R. Popivanov

Publication date: 1978

Title of this publication is not available (Why is that?)

zbMATH Keywords

double characteristicsnonsolvabilitynonhypoellipticityintegral manifolds of the Hamiltonian vector fields

Mathematics Subject Classification ID

Numerical computation of solutions to systems of equations (65H10) Pseudodifferential operators as generalizations of partial differential operators (35S05) Geometric theory, characteristics, transformations in context of PDEs (35A30)

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