Philippe G. LeFloch – författare

It presents the state-of-the-art on the dynamics of compressible fluids and mixtures that undergo phase changes, while remaining accessible to applied mathematicians and engineers interested in shock waves, phase boundary propagation, and nozzle flows.

It presents the state-of-the-art on the dynamics of compressible fluids and mixtures that undergo phase changes, while remaining accessible to applied mathematicians and engineers interested in shock waves, phase boundary propagation, and nozzle flows.

This is a self-contained exposition of the well-posedness theory for nonlinear hyperbolic systems of conservation laws, completed by the author together with his collaborators. The systems of partial differential equations under consideration arise in many areas of continuum physics. No familiarity with the subject is assumed, so the book can be used by graduate students and researchers interested in developments concerning nonlinear partial differential equations and the mathematical aspects of shock waves and propagating phase boundaries. The text covers the existence, uniqueness and continuous dependence of classical (compressive) entropy solutions. It also introduces the reader to the developing theory of nonclassical (undercompressive) entropy solutions. The study of nonclassical shock waves is based on the concept of a kinetic relation introduced by the author for general hyperbolic systems and derived from singular limits of hyperbolic conservation laws with balanced diffusion and dispersion terms.

This book is devoted to the Einstein's field equations of general relativity for self-gravitating massive scalar fields. We formulate the initial value problem when the initial data set is a perturbation of an asymptotically flat, spacelike hypersurface in Minkowski spacetime. We then establish the existence of an Einstein development associated with this initial data set, which is proven to be an asymptotically flat and future geodesically complete spacetime.