Department Matemates, University of Bologna, viale Filopanti n. 5, 40126 Bologna, Italy Department of Mathematics, University of Ferrara, via Macchiavelli n. 35, 44100 Ferrara, Italy
Abstract:
The local solvability of the Cauchy problem in Sobolev spaces is studied for a class of nonlinear partial differential equations incorporating weakly hyperbolic and Schrödinger equations.