Branching of Singularities for Degenerate Hyperbolic Operators
Branching of Singularities for Degenerate Hyperbolic Operators
c,,)ejZ", £>,= d<y<«) and P(t, X, A, A) be a m-th order linear hyperbolic partial differential operator with C coefficients.Consider the Cauchy problem:, ^" = 0 in (s, T\XR", We assume the principal symbol P m (t, x, T, £) of P is smoothly factorizable: P m (r, x, T, …