Author: Margaret GurneyPublisher:
ISBN:
Category :
Languages : en
Pages : 58
Book Description
Some General Existence Theorems for Partial Differential Equations of Hyperbolic Type
Author: Margaret GurneyLectures on Nonlinear Hyperbolic Differential Equations
Author: Lars HörmanderPublisher: Springer Science & Business Media
ISBN: 9783540629214
Category : Mathematics
Languages : en
Pages : 308
Book Description
In this introductory textbook, a revised and extended version of well-known lectures by L. Hörmander from 1986, four chapters are devoted to weak solutions of systems of conservation laws. Apart from that the book only studies classical solutions. Two chapters concern the existence of global solutions or estimates of the lifespan for solutions of nonlinear perturbations of the wave or Klein-Gordon equation with small initial data. Four chapters are devoted to microanalysis of the singularities of the solutions. This part assumes some familiarity with pseudodifferential operators which are standard in the theory of linear differential operators, but the extension to the more exotic classes of opertors needed in the nonlinear theory is presented in complete detail.
˜Anœ existence theorem for boundary value problems for nonlinear hyperbolic partial differential equations
Author: Michael E. GrostExistence theorems in partial differential equations
Author: Dorothy L. BernsteinPublisher:
ISBN:
Category :
Languages : it
Pages : 228
Book Description
Exact Solutions and Invariant Subspaces of Nonlinear Partial Differential Equations in Mechanics and Physics
Author: Victor A. GalaktionovPublisher: CRC Press
ISBN: 9781584886631
Category : Mathematics
Languages : en
Pages : 538
Book Description
Exact Solutions and Invariant Subspaces of Nonlinear Partial Differential Equations in Mechanics and Physics is the first book to provide a systematic construction of exact solutions via linear invariant subspaces for nonlinear differential operators. Acting as a guide to nonlinear evolution equations and models from physics and mechanics, the book focuses on the existence of new exact solutions on linear invariant subspaces for nonlinear operators and their crucial new properties. This practical reference deals with various partial differential equations (PDEs) and models that exhibit some common nonlinear invariant features. It begins with classical as well as more recent examples of solutions on invariant subspaces. In the remainder of the book, the authors develop several techniques for constructing exact solutions of various nonlinear PDEs, including reaction-diffusion and gas dynamics models, thin-film and Kuramoto-Sivashinsky equations, nonlinear dispersion (compacton) equations, KdV-type and Harry Dym models, quasilinear magma equations, and Green-Naghdi equations. Using exact solutions, they describe the evolution properties of blow-up or extinction phenomena, finite interface propagation, and the oscillatory, changing sign behavior of weak solutions near interfaces for nonlinear PDEs of various types and orders. The techniques surveyed in Exact Solutions and Invariant Subspaces of Nonlinear Partial Differential Equations in Mechanics and Physics serve as a preliminary introduction to the general theory of nonlinear evolution PDEs of different orders and types.
Existence Theorems for Quasi-linear Elliptic Partial Differential Equations in N Variables
Author: Zane Clinton MottelerPublisher:
ISBN:
Category : Differential equations, Partial
Languages : en
Pages : 104
Book Description
Partial Differential Equations
Author: Walter A. StraussPublisher: John Wiley & Sons
ISBN: 0470054565
Category : Mathematics
Languages : en
Pages : 467
Book Description
Our understanding of the fundamental processes of the natural world is based to a large extent on partial differential equations (PDEs). The second edition of Partial Differential Equations provides an introduction to the basic properties of PDEs and the ideas and techniques that have proven useful in analyzing them. It provides the student a broad perspective on the subject, illustrates the incredibly rich variety of phenomena encompassed by it, and imparts a working knowledge of the most important techniques of analysis of the solutions of the equations. In this book mathematical jargon is minimized. Our focus is on the three most classical PDEs: the wave, heat and Laplace equations. Advanced concepts are introduced frequently but with the least possible technicalities. The book is flexibly designed for juniors, seniors or beginning graduate students in science, engineering or mathematics.
AN EXISTENCE THEOREM FOR BOUNDARY VALUE PROBLEMS FOR NONLINEAR HYPERBOLIC PARTIAL DIFFERENTIAL EQUATIONS..
Author: Michael Edward GrostHyperbolic Boundary Value Problems
Author: Reiko SakamotoPublisher: CUP Archive
ISBN: 9780521235686
Category : Mathematics
Languages : en
Pages : 232
Book Description
Boundary value problems are of central importance and interest not only to mathematicians but also to physicists and engineers who need to solve differential equations which govern the behaviour of physical systems. In this book, Professor Sakamoto introduces the general theory of the existence and uniqueness of solutions to the wave equation. The reader is assumed to have some familiarity with Lebesgue integration and complex function theory but other than that the book is essentially self-contained. It is therefore suited to senior undergraduates and graduates in mathematics and the mathematical sciences but can be read with profit by professionals in those subjects.
Nonlinear Hyperbolic Equations, Spectral Theory, and Wavelet Transformations
Author: Sergio AlbeverioPublisher: Springer Science & Business Media
ISBN: 9783764321680
Category : Mathematics
Languages : en
Pages : 458
Book Description
This volume focuses on recent developments in non-linear and hyperbolic equations. In the first contribution, the singularities of the solutions of several classes of non-linear partial differential equations are investigated. Applications concern the Monge-Ampère equation, quasi-linear systems arising in fluid mechanics as well as integro-differential equations for media with memory. There follows an article on L_p-L_q decay estimates for Klein-Gordon equations with time-dependent coefficients, explaining, in particular, the influence of the relation between the mass term and the wave propagation speed. The next paper addresses questions of local existence of solutions, blow-up criteria, and C^8 regularity for quasilinear weakly hyperbolic equations. Spectral theory of semibounded selfadjoint operators is the topic of a further contribution, providing upper and lower bounds for the bottom eigenvalue as well as an upper bound for the second eigenvalue in terms of capacitary estimates. TOC:Contributions: Nonlinear PDE. Singularities, Propagation, Applications (P.R. Popivanov).- From Wave to Klein-Gordon Type Decay Rates (F. Hirosawa and M. Reissig).- Local Solutions to Quasilinear Qeakly Hyperbolic Differential Equations (M. Dreher).- S(M,g)-pseudo-differential Calculus of Manifolds (F. Baldus).- Domain Perturbations and Capacity in General Hilbert Spaces and Applications to Spectral Theory (A. Noll).- An Interpolation Family between Gabor and Wavelet Transformations (B. Nazaret and M. Holschneider).- Formes de Torsion Analytique et Fibrations Singulières (Xiaonan Ma).- Regularisation of Secondary Characteristic Classes and Unusual Index Formulas for Operator-Valued Symbols (G. Rozenblum).