Download or read book Valeurs propres de problemes elliptiques indefinis sur des ouverts non bornes written by Ali Djellit and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Valeurs propres de probl mes elliptiques ind finis sur des ouverts non born s written by Ali Djellit and published by . This book was released on 1992 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: ON ETUDIE LES PROBLEMES AUX VALEURS PROPRES DE LA FORME: AU=G(X)U, DANS IR#N; U=0 SUR , OU EST UN OUVERT NON BORNE DE IR#N, A EST UN OPERATEUR ELLIPTIQUE AUTOADJOINT, NON NECESSAIREMENT POSITIF (PAR EXEMPLE A=+Q, AVEC UN POTENTIEL Q, NON NECESSAIREMENT POSITIF) ET G, LE POIDS, EST UNE FONCTION DEFINIE SUR ET QUI CHANGE DE SIGNE. DANS CE TRAVAIL, ON MONTRE L'EXISTENCE DE VALEURS PROPRES ET ON ETUDIE LEUR COMPORTEMENT ASYMPTOTIQUE. ICI A##1 N'EST PAS COMPACT ET L'EXISTENCE DE VALEURS PROPRES EST DUE AU COMPORTEMENT DU POIDS G A L'INFINI. DANS LE PREMIER CHAPITRE, A DESIGNE SOIT L'OPERATEUR DE LAPLACE , SOIT L'OPERATEUR DE SCHRODINGER A=+Q. POUR MONTRER L'EXISTENCE DES VALEURS PROPRES, ON INTRODUIT LES ESPACES DE SOBOLEV A POIDS ET ON CONSIDERE DEUX CAS SELON LA DIMENSION DE N (N>2 ET N=2). DES HYPOTHESES DE DECROISSANCE DU POIDS A L'INFINI ENTRAINENT L'EXISTENCE D'UNE DOUBLE INFINITE DE VALEURS PROPRES (UNE POSITIVE ET UNE NEGATIVE). POUR ESTIMER LE COMPORTEMENT ASYMPTOTIQUE, QUAND TEND VERS L'INFINI, DES FONCTIONS DE COMPTAGE N#(,+Q,G,) (NOMBRE DE VALEURS PROPRES POSITIVES INFERIEURES A ET NOMBRE DE VALEURS PROPRES NEGATIVES SUPERIEURES A ), ON UTILISE LA METHODE DE R. COURANT; CETTE METHODE, QUI EST BASEE SUR LE PRINCIPE DU MAXMIN, CONSISTE A DECOUPER L'ESPACE EN PETITS CUBES ET A ETUDIER SUR CHAQUE CUBE UN PROBLEME INDUIT PAR LE PROBLEME. SELON LE COMPORTEMENT DU POTENTIEL A L'INFINI, ON ETABLIT LA FORMULE CLASSIQUE DE WEYL OU CELLE DE DE WET-MANDEL. ON ETEND ENSUITE CES RESULTATS A DES OPERATEURS ELLIPTIQUES D'ORDRE 2M DANS LE SECOND CHAPITRE. DANS LA DERNIERE PARTIE, L'OPERATEUR A EST DU TYPE SCHRODINGER, PRECISEMENT A=+Q, OU LE POTENTIEL Q, NON NECESSAIREMENT POSITIF, EST SUPPOSE BORNE INFERIEUREMENT. ON UTILISE DES RESULTATS DE FLECKINGER-MINGARELLI SUR LA THEORIE SPECTRALE DE TELS PROBLEMES, SOUVENT APPELES COMPLETEMENT INDEFINIS. ON CONSIDERE UN PROBLEME A DEUX PARAMETRES POUR MONTRER L'EXISTENCE D'UNE INFINITE DENOMBRABLE DE VALEURS PROPRES POSITIVES. POUR OBTENIR DES RENSEIGNEMENTS SUR N#+(,+Q,G,), ON COMPARE A DES PROBLEMES INDEFINIS A DROITE, ET DEFINIS A GAUCHE, ET ON UTILISE LES RESULTATS DE FLECKINGER-LAPIDUS POUR LES PROBLEMES INDEFINIS A DROITE

Download or read book COMPORTEMENTS ASYMPTOTIQUES DES VALEURS PROPRES DE PROBLEMES INDEFINIS written by MOHAMMED.. EL FETNASSI and published by . This book was released on 1985 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: ON ETUDIE LE COMPORTEMENT ASYMPTOTIQUE DES VALEURS PROPRES DE PROBLEMES ELLIPTIQUES "INDEFINIS A DROITE", C'EST A DIRE DES PROBLEMES DE LA FORME: AU= LAMBDA G U DANS OMEGA , OUVERT NON BORNE DE R**(N), AVEC LES CONDITIONS AUX LIMITES DE DIRICHLET HOMOGENES, QUAND G CHANGE DE SIGNE ET A EST UN OPERATEUR ELLIPTIQUE AUTO-ADJOINT D'ORDRE 2M,DANS DEUX CAS: A) A EST UN OPERATEUR A COEFFICIENTS NON BORNES A L'INFINI; B) A EST UN OPERATEUR DE TYPE SCHROEDINGER

Download or read book Valeurs propres et vecteurs propres de problemes elliptiques non autoadjoints avec un poids indefini pour des systemes d equations aux derivees partielles written by Mamadou Sango and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Mathematical Writings of variste Galois written by Évariste Galois and published by European Mathematical Society. This book was released on 2011 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Before he died at the age of twenty, shot in a mysterious early-morning duel at the end of May 1832, Evariste Galois created mathematics that changed the direction of algebra. This book contains English translations of almost all the Galois material. The translations are presented alongside a new transcription of the original French and are enhanced by three levels of commentary. An introduction explains the context of Galois' work, the various publications in which it appears, and the vagaries of his manuscripts. Then there is a chapter in which the five mathematical articles published in his lifetime are reprinted. After that come the testamentary letter and the first memoir (in which Galois expounded on the ideas that led to Galois Theory), which are the most famous of the manuscripts. These are followed by the second memoir and other lesser known manuscripts. This book makes available to a wide mathematical and historical readership some of the most exciting mathematics of the first half of the nineteenth century, presented in its original form. The primary aim is to establish a text of what Galois wrote. The details of what he did, the proper evidence of his genius, deserve to be well understood and appreciated by mathematicians as well as historians of mathematics.

Download or read book Random Polynomials written by A. T. Bharucha-Reid and published by Academic Press. This book was released on 2014-05-10 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Probability and Mathematical Statistics: A Series of Monographs and Textbooks: Random Polynomials focuses on a comprehensive treatment of random algebraic, orthogonal, and trigonometric polynomials. The publication first offers information on the basic definitions and properties of random algebraic polynomials and random matrices. Discussions focus on Newton's formula for random algebraic polynomials, random characteristic polynomials, measurability of the zeros of a random algebraic polynomial, and random power series and random algebraic polynomials. The text then elaborates on the number and expected number of real zeros of random algebraic polynomials; number and expected number of real zeros of other random polynomials; and variance of the number of real zeros of random algebraic polynomials. Topics include the expected number of real zeros of random orthogonal polynomials and the number and expected number of real zeros of trigonometric polynomials. The book takes a look at convergence and limit theorems for random polynomials and distribution of the zeros of random algebraic polynomials, including limit theorems for random algebraic polynomials and random companion matrices and distribution of the zeros of random algebraic polynomials. The publication is a dependable reference for probabilists, statisticians, physicists, engineers, and economists.

Download or read book The Floer Memorial Volume written by Helmut Hofer and published by Birkhäuser. This book was released on 2012-12-06 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Andreas Floer died on May 15, 1991 an untimely and tragic death. His visions and far-reaching contributions have significantly influenced the developments of mathematics. His main interests centered on the fields of dynamical systems, symplectic geometry, Yang-Mills theory and low dimensional topology. Motivated by the global existence problem of periodic solutions for Hamiltonian systems and starting from ideas of Conley, Gromov and Witten, he developed his Floer homology, providing new, powerful methods which can be applied to problems inaccessible only a few years ago. This volume opens with a short biography and three hitherto unpublished papers of Andreas Floer. It then presents a collection of invited contributions, and survey articles as well as research papers on his fields of interest, bearing testimony of the high esteem and appreciation this brilliant mathematician enjoyed among his colleagues. Authors include: A. Floer, V.I. Arnold, M. Atiyah, M. Audin, D.M. Austin, S.M. Bates, P.J. Braam, M. Chaperon, R.L. Cohen, G. Dell' Antonio, S.K. Donaldson, B. D'Onofrio, I. Ekeland, Y. Eliashberg, K.D. Ernst, R. Finthushel, A.B. Givental, H. Hofer, J.D.S. Jones, I. McAllister, D. McDuff, Y.-G. Oh, L. Polterovich, D.A. Salamon, G.B. Segal, R. Stern, C.H. Taubes, C. Viterbo, A. Weinstein, E. Witten, E. Zehnder.

Download or read book On the Cauchy Problem written by Sigeru Mizohata and published by Academic Press. This book was released on 2014-05-10 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Notes and Reports in Mathematics in Science and Engineering, Volume 3: On the Cauchy Problem focuses on the processes, methodologies, and mathematical approaches to Cauchy problems. The publication first elaborates on evolution equations, Lax-Mizohata theorem, and Cauchy problems in Gevrey class. Discussions focus on fundamental proposition, proof of theorem 4, Gevrey property in t of solutions, basic facts on pseudo-differential, and proof of theorem 3. The book then takes a look at micro-local analysis in Gevrey class, including proof and consequences of theorem 1. The manuscript examines Schrödinger type equations, as well as general view-points on evolution equations. Numerical representations and analyses are provided in the explanation of these type of equations. The book is a valuable reference for mathematicians and researchers interested in the Cauchy problem.

Download or read book The Number System written by H. A. Thurston and published by Courier Corporation. This book was released on 2012-10-23 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores arithmetic's underlying concepts and their logical development, in addition to a detailed, systematic construction of the number systems of rational, real, and complex numbers. 1956 edition.

Download or read book Economic Fallacies written by Frederic Bastiat and published by Simon Publications. This book was released on 2001-08-16 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, written by the celebrated nineteenth century French economist propagating free trade, reads as it was written yesterday.

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Download or read book From Riemann to Differential Geometry and Relativity written by Lizhen Ji and published by Springer. This book was released on 2017-10-03 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the work of Bernhard Riemann and its impact on mathematics, philosophy and physics. It features contributions from a range of fields, historical expositions, and selected research articles that were motivated by Riemann’s ideas and demonstrate their timelessness. The editors are convinced of the tremendous value of going into Riemann’s work in depth, investigating his original ideas, integrating them into a broader perspective, and establishing ties with modern science and philosophy. Accordingly, the contributors to this volume are mathematicians, physicists, philosophers and historians of science. The book offers a unique resource for students and researchers in the fields of mathematics, physics and philosophy, historians of science, and more generally to a wide range of readers interested in the history of ideas.

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 Quantum Mechanics Volume 3 written by Claude Cohen-Tannoudji and published by John Wiley & Sons. This book was released on 2019-12-16 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new, third volume of Cohen-Tannoudji's groundbreaking textbook covers advanced topics of quantum mechanics such as uncorrelated and correlated identical particles, the quantum theory of the electromagnetic field, absorption, emission and scattering of photons by atoms, and quantum entanglement. Written in a didactically unrivalled manner, the textbook explains the fundamental concepts in seven chapters which are elaborated in accompanying complements that provide more detailed discussions, examples and applications. * Completing the success story: the third and final volume of the quantum mechanics textbook written by 1997 Nobel laureate Claude Cohen-Tannoudji and his colleagues Bernard Diu and Franck Laloë * As easily comprehensible as possible: all steps of the physical background and its mathematical representation are spelled out explicitly * Comprehensive: in addition to the fundamentals themselves, the books comes with a wealth of elaborately explained examples and applications Claude Cohen-Tannoudji was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris where he also studied and received his PhD in 1962. In 1973 he became Professor of atomic and molecular physics at the Collège des France. His main research interests were optical pumping, quantum optics and atom-photon interactions. In 1997, Claude Cohen-Tannoudji, together with Steven Chu and William D. Phillips, was awarded the Nobel Prize in Physics for his research on laser cooling and trapping of neutral atoms. Bernard Diu was Professor at the Denis Diderot University (Paris VII). He was engaged in research at the Laboratory of Theoretical Physics and High Energy where his focus was on strong interactions physics and statistical mechanics. Franck Laloë was a researcher at the Kastler-Brossel laboratory of the Ecole Normale Supérieure in Paris. His first assignment was with the University of Paris VI before he was appointed to the CNRS, the French National Research Center. His research was focused on optical pumping, statistical mechanics of quantum gases, musical acoustics and the foundations of quantum mechanics.

Download or read book Atti Del Congresso Internazionale Dei Matematici written by and published by . This book was released on 1909 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rational Points on Algebraic Varieties written by Emmanuel Peyre and published by Birkhäuser. This book was released on 2012-12-06 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the study of rational and integral points on higher-dimensional algebraic varieties. It contains carefully selected research papers addressing the arithmetic geometry of varieties which are not of general type, with an emphasis on how rational points are distributed with respect to the classical, Zariski and adelic topologies. The present volume gives a glimpse of the state of the art of this rapidly expanding domain in arithmetic geometry. The techniques involve explicit geometric constructions, ideas from the minimal model program in algebraic geometry as well as analytic number theory and harmonic analysis on adelic groups.

Download or read book The Abel Prize written by Helge Holden and published by Springer Science & Business Media. This book was released on 2009-12-01 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the winners of the first five Abel Prizes in mathematics: 2003 Jean-Pierre Serre; 2004 Sir Michael Atiyah and Isadore Singer; 2005 Peter D. Lax; 2006 Lennart Carleson; and 2007 S.R. Srinivasa Varadhan. Each laureate provides an autobiography or an interview, a curriculum vitae, and a complete bibliography. This is complemented by a scholarly description of their work written by leading experts in the field and by a brief history of the Abel Prize. Interviews with the laureates can be found at http://extras.springer.com .