Download or read book Etude math matique de mod les asymptotiques pour les ondes d Alfven written by FILIPE.. SERRA DE OLIVEIRA and published by . This book was released on 2001 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES ONDES D'ALFVEN SONT UN PHENOMENE DE PROPAGATION OBSERVE LORSQUE L'ON SOUMET UN PLASMA MAGNETISE A UN FORT CHAMP MAGNETIQUE EXTERIEUR BO. CES PHENOMENES SONT DECRITS PAR LES EQUATIONS GENERALES DE LA MAGNETOHYDRODYNAMIQUE (MHD). CES EQUATIONS ETANT TRES COMPLEXES D'UN POINT DE VUE MATHEMATIQUE, UN INTERET CROISSANT A ETE PORTE CES DERNIERES ANNEES A SES LIMITES ASYMPTOTIQUES. EN TENANT COMPTE DE L'EFFET HALL DANS LA LOI D'OHM GENERALISEE, LE SYSTEME (MHD) DEVIENT DISPERSIF, ET IL EST POSSIBLE DE DISTINGUER, DANS LE CAS DE LA PROPAGATION D'ONDES D'ALFVEN, PLUSIEURS MODELES ASYMPTOTIQUES DISTINCTS. DANS CETTE THESE, NOUS AVONS ETUDIE D'UN POINT DE VUE MATHEMATIQUE UN CERTAIN NOMBRE DE CES MODELES ASYMPTOTIQUES. TOUT D'ABORD, NOUS AVONS ETUDIE LE MODELE MULTIDIMENSIONNEL DE L'EQUATION DNLS, PROPOSE PAR MYOLLUS ET WYLLER. APRES AVOIR CONSIDERE LE PROBLEME LINEAIRE ASSOCIE, EN OBTENANT DES ESTIMATIONS DU TYPE STRICHARTZ, NOUS AVONS TRAITE LE PROBLEME DE CAUCHY RELATIF AU SYSTEME GENERAL, DANS LE CONTEXTE DES ESPACES DE SOBOLEV ANALYTIQUES DE HAYASHI. PUIS, NOUS AVONS TRAITE LE CAS DE L'EQUATION DNLS AVEC TERME NON-LOCAL, REPRESENTANT LA RESONANCE DES PARTICULES. ENSUITE NOUS AVONS EFFECTUE L'ETUDE COMPLETE DE L'EQUATION DE ZAKHAROV-RUBENCHICK 1D, EN MONTRANT EN PARTICULIER L'EXISTENCE DE SOLUTIONS DU TYPE ONDES-SOLITAIRES QUI SONT ORBITALEMENT STABLES. FINALEMENT, NOUS AVONS PU DEMONTRER RIGOUREUSEMENT QUE LA DYNAMIQUE DEFINIE PAR L'EQUATION DE SCHRODINGER CUBIQUE SE RETROUVE EN PARTIE DANS CELLE RELATIVE A L'EQUATION DNLS.
Download or read book Etude math matique de quelques mod les asymptotiques non lin aires pour la propagation d ondes dans un milieu la fois dispersif et disspatif written by Bassam Kojok and published by . This book was released on 2008 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Résumé en français]Cette thèse est consacrée à l'étude mathématique de quelques EDP non-linéaires modélisant la propagation d'ondes longues dans un milieu à la fois dispersif et dissipatif. Ce groupe d'équations comprend entre autres, les équations de Korteweg-de-Vries-Burgers (KdV-B) et de Kadomtsev-Petviashvili-Burgers (KPB I et II), qui en sont les exemples types. Dans une première partie de la thèse, un résultat précis dans l'échelle des espaces de Sobo-lev sur le caractère bien posé local et global du problème de Cauchy lié à l'équation de KPB-II est obtenu. Dans une seconde partie, nous montrons que les ondes progressives monoto-nes de KdV-B sont stables et asymptotiquement stables sous la dynamique de KPB-I par rapport à des petites perturbations dans l'espace d'énergie. La dernière partie porte sur une étude du caractère bien posé global d'un problème de Cauchy à la fois dispersif et dissipatif, avec une force extérieure f(t; x) très peu régulière, via la I-méthode.
Download or read book Generalized Feynman Amplitudes AM 62 Volume 62 written by Eugene R. Speer and published by Princeton University Press. This book was released on 2016-03-02 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a valuable discussion of renormalization through the addition of counterterms to the Lagrangian, giving the first complete proof of the cancellation of all divergences in an arbitrary interaction. The author also introduces a new method of renormalizing an arbitrary Feynman amplitude, a method that is simpler than previous approaches and can be used to study the renormalized perturbation series in quantum field theory.
Download or read book Relativistic Hydrodynamics and Magnetohydrodynamics written by André Lichnerowicz and published by . This book was released on 1967 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book All it Is It s a Carnival written by Mária Németh Lenke and published by . This book was released on 2007 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Materials Interfaces written by Ashutosh Tiwari and published by John Wiley & Sons. This book was released on 2016-06-22 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Material Interfaces is a state-of-the-art look at innovative methodologies and strategies adopted for interfaces and their applications. The 13 chapters are written by eminent researchers not only elaborate complex interfaces fashioned of solids, liquids, and gases, but also ensures cross-disciplinary mixture and blends of physics, chemistry, materials science, engineering and life sciences. Advanced interfaces operate fundamental roles in essentially all integrated devices. It is therefore of the utmost urgency to focus on how newly-discovered fundamental constituents and interfacial progressions can be materialized and used for precise purposes. Interfaces are associated in wide multiplicity of application spectrum from chemical catalysis to drug functions and the advancement is funnelled by fine-tuning of our fundamental understanding of the interface effects.
Download or read book An Introduction to Differential Manifolds written by Jacques Lafontaine and published by Springer. This book was released on 2015-07-29 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an introduction to differential manifolds. It gives solid preliminaries for more advanced topics: Riemannian manifolds, differential topology, Lie theory. It presupposes little background: the reader is only expected to master basic differential calculus, and a little point-set topology. The book covers the main topics of differential geometry: manifolds, tangent space, vector fields, differential forms, Lie groups, and a few more sophisticated topics such as de Rham cohomology, degree theory and the Gauss-Bonnet theorem for surfaces. Its ambition is to give solid foundations. In particular, the introduction of “abstract” notions such as manifolds or differential forms is motivated via questions and examples from mathematics or theoretical physics. More than 150 exercises, some of them easy and classical, some others more sophisticated, will help the beginner as well as the more expert reader. Solutions are provided for most of them. The book should be of interest to various readers: undergraduate and graduate students for a first contact to differential manifolds, mathematicians from other fields and physicists who wish to acquire some feeling about this beautiful theory. The original French text Introduction aux variétés différentielles has been a best-seller in its category in France for many years. Jacques Lafontaine was successively assistant Professor at Paris Diderot University and Professor at the University of Montpellier, where he is presently emeritus. His main research interests are Riemannian and pseudo-Riemannian geometry, including some aspects of mathematical relativity. Besides his personal research articles, he was involved in several textbooks and research monographs.
Download or read book Inverse Spectra written by Alex Chigogidze and published by North Holland. This book was released on 1996-03-29 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invited to translate his 1992 book from the Russian, Chigogidze chose instead to produce an updated version. He introduces a powerful method used in various branches of topology and also being applied to functional analysis and algebra. He surveys the Hilbert cube and Hilbert space manifold theories, recent developments of the Menger and Nobeling manifold theories, infinite-dimensional manifolds, cohomological dimensions, the general theory of absolute extensors in dimension n and n-soft mappings, the topology of non-metrizable manifolds, and applications in a number of areas. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Aeronomy written by P. M. Banks and published by Elsevier. This book was released on 2013-09-24 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aeronomy, Part A is an attempt to make a comprehensive exposition of the processes in aeronomy, the study of composition, movement, and thermal balance of the upper regions of the planetary atmosphere. The text covers topics such as atmospheric regions and atmospheric density, the temperature and molecular mass of the atmosphere; the permanent constituents and the molecular and isotonic composition of the homosphere; and the transition from the homosphere to the heterosphere. Also covered are topics such as the temperature gradient and energies in the thermosphere, conditions at 200km and above 250km, solar radiation and ionization, and aeronomic reactions. The book is recommended for scientists, especially natural physicists, who would like to know more about the field of aeronomy and its advances.
Download or read book Minimum competence in scientific English written by Sue Blattes and published by L'Editeur : EDP Sciences. This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage, devenu célèbre sous son sigle MCSE, a déjà été utilisé par plus de 50 000 étudiants, chercheurs, professionnels. L'objectif est de lire et écrire des textes en anglais scientifique avec facilité et pertinence. L'ouvrage est conçu pour que l'apprenant devienne un véritable utilisateur de l'anglais. La méthode originale repose sur l'analyse des fonctions et structures nécessaires : measurement, frequency, comparison, modification, link words, time, cause and consequence, hypothesis, modality, purpose and process, impersonal forms, compound nouns and adjectives. Dans chaque unit, des tests d'auto-évaluation permettent de se situer et de construire son parcours de formation, d'abord en définissant ses objectifs à l'aide des key points et du lexis, puis, de façon plus personnalisée, en puisant dans les examples in context, checkpoints (back to basics, word web), web search, FAQs... MCSE est l'outil de base d'une méthode qui comprend aussi d'autres outils dans la même collection (Listening Comprehension for Scientiflc English et Speaking Skills in Scientitic English). L'ouvrage est destiné à tout apprenant de niveau baccalauréat qui désire acquérir une réelle compétence dans l'écriture et la lecture de textes en anglais scientifique.
Download or read book Tomita s Theory of Modular Hilbert Algebras and Its Applications written by and published by . This book was released on 1968 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Popular Astronomy written by Camille Flammarion and published by . This book was released on 1894 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mood Choice in Complement Clauses written by Toth and published by Peter Lang. This book was released on 2008 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume investigates various approaches to mood distribution and mood variation in lexically selected complement clauses with special reference to Hungarian data. Its primary aim is to show that semantic factors play a crucial role in mood choice. The analysis focuses on the indicative/non-indicative opposition, the latter category includes the subjunctive, the imperative and the conditional. Critical discussion, revision and elaboration of previous semantic approaches pertaining to mood choice are presented, with particular emphasis on the applicability of the various analyses to mood phenomena in Hungarian. The author proposes two novel hypotheses about mood choice in Hungarian complement clauses.
Download or read book The Navier Stokes Equations written by Hermann Sohr and published by Springer Science & Business Media. This book was released on 2012-12-13 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this monograph is to develop an elementary and se- containedapproachtothemathematicaltheoryofaviscousincompressible?uid n in a domain ? of the Euclidean spaceR , described by the equations of Navier- Stokes. The book is mainly directed to students familiar with basic functional analytic tools in Hilbert and Banach spaces. However, for readers’ convenience, in the ?rst two chapters we collect, without proof some fundamental properties of Sobolev spaces, distributions, operators, etc. Another important objective is to formulate the theory for a completely general domain ?. In particular, the theory applies to arbitrary unbounded, non-smooth domains. For this reason, in the nonlinear case, we have to restrict ourselves to space dimensions n=2,3 that are also most signi?cant from the physical point of view. For mathematical generality, we will develop the l- earized theory for all n? 2. Although the functional-analytic approach developed here is, in principle, known to specialists, its systematic treatment is not available, and even the diverseaspectsavailablearespreadoutintheliterature.However,theliterature is very wide, and I did not even try to include a full list of related papers, also because this could be confusing for the student. In this regard, I would like to apologize for not quoting all the works that, directly or indirectly, have inspired this monograph.
Download or read book Nonlinear Differential Equations written by Pavel Drabek and published by CRC Press. This book was released on 2024-05-17 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Working with mathematical models today requires in-depth knowledge of recent methods developed for solving nonlinear differential equations. Keeping abreast of these developments is the goal of the regular meetings of nonlinear analysts held in the Czech Republic, the most recent of which formed the basis of this volume. The subject addressed by these authors is the theory of nonlinear differential equations, with focus on the quasilinear elliptic differential equations of the degenerate type.
Download or read book Singularities in Boundary Value Problems written by Pierre Grisvard and published by Springer. This book was released on 1992 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Topics in Nonlinear PDE written by M. Mimura and published by Elsevier. This book was released on 2000-04-01 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers covering the theory of nonlinear PDEs and the related topics which have been recently developed in Japan.
