Vector potentials for symmetric hyperbolic systems. (English) Zbl 0452.35083
MSC:
35L99 | Hyperbolic equations and hyperbolic systems |
31B15 | Potentials and capacities, extremal length and related notions in higher dimensions |
58J47 | Propagation of singularities; initial value problems on manifolds |
31B35 | Connections of harmonic functions with differential equations in higher dimensions |