Bøger af Jacques Hadamard

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Leçons De Géométrie Élémentaire, Volume 2; Leçons De Géométrie Élémentaire; Jacques Hadamard Jacques Hadamard A. Colin, 1901 Mathematics; Geometry; General; Geometry; Mathematics / Geometry / General; Mathematics / Logic

""Four Lectures on Mathematics"" is a book written by Jacques Hadamard and originally published in 1915. The book is a collection of four lectures that were delivered by the author at Columbia University in 1914. The lectures cover a range of topics in mathematics, including the theory of functions, differential equations, and the calculus of variations. The first lecture focuses on the theory of functions and explores the concept of analyticity, which is the property of a function to be expressed as a power series. The second lecture delves into the topic of differential equations, covering both ordinary and partial differential equations. The third lecture examines the calculus of variations, which is the study of the optimization of functions. Finally, the fourth lecture discusses the Riemann hypothesis, which is one of the most famous unsolved problems in mathematics.Hadamard's writing is clear and concise, making the lectures accessible to both students and professionals in the field of mathematics. The book is a valuable resource for those interested in the history and development of mathematics, as well as for those looking to deepen their understanding of the subject.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.

This seminal work of Hadamard on the mathematical theory of waves was written over 100 years ago and it continues to be cited as a reference by researchers in mathematical physics. The reason for the enduring interest in this book can be found in its legacy. The conception of waves as discontinuities in some level of derivative of a wave function that propagate along the bicharacteristics of the wave equation spawned many of the important advances to both the purely mathematical theory of hyperbolic equations, as well as the more physical and engineering-oriented treatments of the subject of wave motion. In mathematics, one can follow the implications of this work into the subsequent lectures that Hadamard gave on the Cauchy problem for linear partial differential equations. One should, however, regard this masterful treatise not only as a precursor to the later lectures on the Cauchy problem, but as a complementary work in which he establishes the roots of the mathematical theory in continuum mechanics.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This scarce antiquarian book is a facsimile reprint of the original. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions that are true to the original work.

Cours du Collège de France. Leçons sur le calcul des variations, professées par J. Hadamard, ... recueillies par M. Fréchet. T. I. La variation première et les conditions du premier ordre. Les conditions de l'extremum libreDate de l'édition originale: 1910Le présent ouvrage s'inscrit dans une politique de conservation patrimoniale des ouvrages de la littérature Française mise en place avec la BNF.HACHETTE LIVRE et la BNF proposent ainsi un catalogue de titres indisponibles, la BNF ayant numérisé ces oeuvres et HACHETTE LIVRE les imprimant à la demande.Certains de ces ouvrages reflètent des courants de pensée caractéristiques de leur époque, mais qui seraient aujourd'hui jugés condamnables.Ils n'en appartiennent pas moins à l'histoire des idées en France et sont susceptibles de présenter un intérêt scientifique ou historique.Le sens de notre démarche éditoriale consiste ainsi à permettre l'accès à ces oeuvres sans pour autant que nous en cautionnions en aucune façon le contenu.Pour plus d'informations, rendez-vous sur www.hachettebnf.fr

Explores the complex problem of mental life. This book argues that the roots of creativity for lie not in consciousness, but in the long unconscious work of incubation, and in the unconscious aesthetic selection of ideas that thereby pass into consciousness.