Quasilinear hyperbolic operators with the characteristics of variable multiplicity
Quasilinear hyperbolic operators with the characteristics of variable multiplicity
IntroductionFor quasilinear strictly hyperbolic operators the Cauchy problem is inves- tigated in many papers and books (see, for instance, [1], [7], [11], [16], [21], [22]).Although there are a lot of interesting open problems for the strictly hyperbolic operators, nevertheless we reckon that it is important also to investigate quasi- linear …