Author: N.A

Publisher: Academic Press

ISBN: 9780080874562

Category: Mathematics

Page: 406

View: 3847

Initial-Boundary Value Problems and the Navier-Stokes Equations

Author: N.A

Publisher: Academic Press

ISBN: 9780080874562

Category: Mathematics

Page: 406

View: 3847

Initial-Boundary Value Problems and the Navier-Stokes Equations*Eine integrierte Einführung in Randwertprobleme und Evolutionsgleichungen für Studierende*

Author: Etienne Emmrich

Publisher: Springer-Verlag

ISBN: 332280240X

Category: Mathematics

Page: 300

View: 2083

Die mathematische Modellierung von Phänomenen und Prozessen in den Natur- und Technikwissenschaften, zunehmend auch in den Lebenswissenschaften, führt oftmals auf Differentialgleichungen. Das Anliegen dieses Lehrbuchs ist die rasche und doch verständliche Heranführung an (funktional-)analytische Methoden, die die Behandlung linearer und nichtlinearer Rand- und Anfangswertprobleme gestatten: Fixpunktprinzipien, Kompaktheits- und Monotonieargumente, variationelle Methoden und die Konstruktion von Näherungslösungen. Diese tragenden Methoden und Techniken werden angewandt, um klassische und schwache Lösungen von gewöhnlichen Randwertproblemen, Variationsproblemen und Evolutionsgleichungen (der abstrakten Formulierung zeitabhängiger partieller Differentialgleichungen) zu studieren.

Author: Michael Oberguggenberger,Michael Grosser,Michael Kunzinger,Gunther Hormann

Publisher: CRC Press

ISBN: 9780849306495

Category: Mathematics

Page: 400

View: 8512

Questions regarding the interplay of nonlinearity and the creation and propagation of singularities arise in a variety of fields-including nonlinear partial differential equations, noise-driven stochastic partial differential equations, general relativity, and geometry with singularities. A workshop held at the Erwin-Schrödinger International Institute for Mathematical Physics in Vienna investigated these questions and culminated in this volume of invited papers from experts in the fields of nonlinear partial differential equations, structure theory of generalized functions, geometry and general relativity, stochastic partial differential equations, and nonstandard analysis. The authors provide the latest research relevant to work in partial differential equations, mathematical physics, and nonlinear analysis. With a focus on applications, this books provides a compilation of recent approaches to the problem of singularities in nonlinear models. The theory of differential algebras of generalized functions serves as the central theme of the project, along with its interrelations with classical methods.

Author: Heinz-Otto Kreiss,Jens Lorenz

Publisher: SIAM

ISBN: 0898715652

Category: Science

Page: 420

View: 8332

Initial-Boundary Value Problems and the Navier-Stokes Equations gives an introduction to the vast subject of initial and initial-boundary value problems for PDEs. Applications to parabolic and hyperbolic systems are emphasized in this text. The Navier-Stokes equations for compressible and incompressible flows are taken as an example to illustrate the results. The subjects addressed in the book, such as the well-posedness of initial-boundary value problems, are of frequent interest when PDEs are used in modeling or when they are solved numerically. The book explains the principles of these subjects. The reader will learn what well-posedness or ill-posedness means and how it can be demonstrated for concrete problems. Audience: when the book was written, the main intent was to write a text on initial-boundary value problems that was accessible to a rather wide audience. Functional analytical prerequisites were kept to a minimum or were developed in the book. Boundary conditions are analyzed without first proving trace theorems, and similar simplifications have been used throughout. This book continues to be useful to researchers and graduate students in applied mathematics and engineering.

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Electronic data processing

Page: N.A

View: 4543

Author: Stanford University. Dept. of Mechanical Engineering. Division of Applied Mechanics,J. C. Simo,F. Armero

Publisher: N.A

ISBN: N.A

Category:

Page: 54

View: 4078

*proceedings of the Second Symposium on High Performance Computing, Montpellier, France, 7-9 October, 1991*

Author: M. Durand,F. El Dabaghi

Publisher: North-Holland

ISBN: N.A

Category: Computers

Page: 673

View: 909

Author: Jeffrey Rauch,Michael Taylor

Publisher: Springer

ISBN: 9780387982007

Category: Science

Page: 158

View: 3637

This volume contains a multiplicity of approaches brought to bear on problems varying from the formation of caustics and the propagation of waves at a boundary, to the examination of viscous boundary layers. It examines the foundations of the theory of high- frequency electromagnetic waves in a dielectric or semiconducting medium. Nor are unifying themes entirely absent from nonlinear analysis: one chapter considers microlocal analysis, including paradifferential operator calculus, on Morrey spaces, and connections with various classes of partial differential equations.

Author: A.V. Babin,M.I. Vishik

Publisher: Elsevier

ISBN: 9780080875460

Category: Mathematics

Page: 531

View: 7434

Problems, ideas and notions from the theory of finite-dimensional dynamical systems have penetrated deeply into the theory of infinite-dimensional systems and partial differential equations. From the standpoint of the theory of the dynamical systems, many scientists have investigated the evolutionary equations of mathematical physics. Such equations include the Navier-Stokes system, magneto-hydrodynamics equations, reaction-diffusion equations, and damped semilinear wave equations. Due to the recent efforts of many mathematicians, it has been established that the attractor of the Navier-Stokes system, which attracts (in an appropriate functional space) as t - ∞ all trajectories of this system, is a compact finite-dimensional (in the sense of Hausdorff) set. Upper and lower bounds (in terms of the Reynolds number) for the dimension of the attractor were found. These results for the Navier-Stokes system have stimulated investigations of attractors of other equations of mathematical physics. For certain problems, in particular for reaction-diffusion systems and nonlinear damped wave equations, mathematicians have established the existence of the attractors and their basic properties; furthermore, they proved that, as t - +∞, an infinite-dimensional dynamics described by these equations and systems uniformly approaches a finite-dimensional dynamics on the attractor U, which, in the case being considered, is the union of smooth manifolds. This book is devoted to these and several other topics related to the behaviour as t - ∞ of solutions for evolutionary equations.

Author: Dale E. Alspach,Spiros Argyros

Publisher: N.A

ISBN: 9788385116592

Category: Mathematics

Page: 44

View: 6888

*rozprawy matematyczne*

Author: Wojciech M. Zajączkowski

Publisher: N.A

ISBN: 9788385116813

Category: Mathematics

Page: 101

View: 2673

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Electronic journals

Page: N.A

View: 8102

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Mechanics, Applied

Page: N.A

View: 6621

Author: Wolf von Wahl

Publisher: Springer-Verlag

ISBN: 3663139115

Category: Mathematics

Page: 264

View: 3274

Author: N.A

Publisher: N.A

ISBN: N.A

Category: American literature

Page: N.A

View: 8978

*Modelling and Numerical Simulation*

Author: Roland Glowinski,Pekka Neittaanmäki

Publisher: Springer Science & Business Media

ISBN: 1402087586

Category: Science

Page: 292

View: 6757

For more than 250 years partial di?erential equations have been clearly the most important tool available to mankind in order to understand a large variety of phenomena, natural at ?rst and then those originating from - man activity and technological development. Mechanics, physics and their engineering applications were the ?rst to bene?t from the impact of partial di?erential equations on modeling and design, but a little less than a century ago the Schr ̈ odinger equation was the key opening the door to the application of partial di?erential equations to quantum chemistry, for small atomic and molecular systems at ?rst, but then for systems of fast growing complexity. The place of partial di?erential equations in mathematics is a very particular one: initially, the partial di?erential equations modeling natural phenomena were derived by combining calculus with physical reasoning in order to - press conservation laws and principles in partial di?erential equation form, leading to the wave equation, the heat equation, the equations of elasticity, the Euler and Navier–Stokes equations for ?uids, the Maxwell equations of electro-magnetics, etc. It is in order to solve ‘constructively’ the heat equation that Fourier developed the series bearing his name in the early 19th century; Fourier series (and later integrals) have played (and still play) a fundamental roleinbothpureandappliedmathematics,includingmanyareasquiteremote from partial di?erential equations. On the other hand, several areas of mathematics such as di?erential ge- etry have bene?ted from their interactions with partial di?erential equations.