Microlocal Analysis and Nonlin

On the interaction of conormal waves for semilinear wave equations.- Regularity of nonlinear waves associated with a cusp.- Evolution of a punctual singularity in an Eulerian flow.- Water waves, Hamiltonian systems and Cauchy integrals.- Infinite gain of regularity for dispersive evolution equations.- On the fully non-linear Cauchy problem with small data. II.- Interacting weakly nonlinear hyperbolic and dispersive waves.- Nonlinear resonance can create dense oscillations.- Lower bounds of the life-span of small classical solutions for nonlinear wave equations.- Propagation of stronger singularities of solutions to semilinear wave equations.- Conormality, cusps and non-linear interaction.- Quasimodes for the Laplace operator and glancing hypersurfaces.- A decay estimate for the three-dimensional inhomogeneous Klein-Gordon equation and global existence for nonlinear equations.- Interaction of singularities and propagation into shadow regions in semilinear boundary problems.