×

Initial boundary value problems of fourth order hyperbolic equations. (English) Zbl 0432.35052

MSC:

35L30 Initial value problems for higher-order hyperbolic equations
35L35 Initial-boundary value problems for higher-order hyperbolic equations
31A30 Biharmonic, polyharmonic functions and equations, Poisson’s equation in two dimensions
31A35 Connections of harmonic functions with differential equations in two dimensions
Full Text: DOI