Propagation of singularities for semilinear hyperbolic equations in two variables. (English) Zbl 0407.35057
Ann. Math. (2) (to appear).
MSC:
35L70 | Second-order nonlinear hyperbolic equations |
35A20 | Analyticity in context of PDEs |
35A30 | Geometric theory, characteristics, transformations in context of PDEs |