Propagation and Interaction of Singularities in Nonlinear Hyperbolic Problems (Progress in Nonlinear Differential Equations and Their Applications Sr)

This book developed from a series of lectures I gave at the Symposium on Nonlinear Microlocal Analysis held at Nanjing University in October. The weak singularities in the solutions to such equations behave up to a certain extent like those present in the linear case: they propagate along the null bicharacteristics of the operator.