Excerpt from Asymptotic Solution of a Dispersive Hyperbolic Equation With Variable Coefficients
In the past few years there has been a great deal of interest in the asymptotic expansion of solutions of boundary value problems and initial boundary value problems for partial differential equations. These expansions are obtained for large distance and/or time or for large values of a parameter which may appear naturally in the equation and/or initial conditions, boundary conditions, etc.
Many of these problems can be treated by a method in which special curves, called rays, in space or space-time plan an essential role. The asymptotic solution is determined in terms of amplitude and phase functions which satis fy ordinary differential equations on these rays. These equations can often be solved explicitly, so that the solution to the original problem is known if the initial values on the rays of the amplitude and phase functions are known. In some cases these initial values can be determined directly from the data initial conditions, boundary conditions, etc.) of the given problem, while in other situations an indirect method is necessary. This method involves the exact solution of a canonical problem i.a., a problem simpler than that given originally but having the same local features as the given problem.
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Paperback. Zustand: New. Print on Demand. This book offers a profound understanding of the asymptotic expansion of solutions for dispersive hyperbolic equations, showcasing the author's vast expertise in the field. It presents a comprehensive exploration of initial-boundary value problems, examining the behavior of waves as they propagate through varying coefficients and encounter boundaries. The author masterfully unveils the intricate phenomenon of space-time diffraction, where the energy of a wave gradually leaks off, leaving a diminishing trace on boundaries. Through the lens of asymptotic analysis, the book provides essential insights into the dynamics of dispersive waves in diverse physical contexts. Filled with original research, this volume serves as a valuable resource for mathematicians, physicists, and engineers seeking to deepen their knowledge of wave propagation and asymptotic methods. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781332952328_0
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PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781332952328
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