共 50 条
- [36] PROPAGATION OF SINGULARITIES FOR SEMILINEAR HYPERBOLIC-EQUATIONS CANADIAN JOURNAL OF MATHEMATICS-JOURNAL CANADIEN DE MATHEMATIQUES, 1993, 45 (04): : 835 - 846
- [38] SHARP REGULARITY THEORY FOR 2ND-ORDER HYPERBOLIC-EQUATIONS OF NEUMANN TYPE .1. ANNALI DI MATEMATICA PURA ED APPLICATA, 1990, 157 : 285 - 367
- [40] LINEAR HYPERBOLIC-EQUATIONS WITH GEVREY COEFFICIENTS JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES, 1980, 59 (02): : 145 - 185