Orthogonal Polynomials and Continued Fractions

Author: S. V. Khrushchev
Publisher: Cambridge University Press
ISBN: 9780521854191
Release Date: 2008-07-24
Genre: Mathematics

Full account of Euler's work on continued fractions and orthogonal polynomials; illustrates the significance of his work on mathematics today.

Basic Complex Analysis A Comprehensive Course in Analysis Part 2A

Author: Barry Simon
Publisher: American Mathematical Soc.
ISBN: 9781470411008
Release Date: 2015-11-02
Genre: Mathematical analysis

A Comprehensive Course in Analysis by Poincaré Prize winner Barry Simon is a five-volume set that can serve as a graduate-level analysis textbook with a lot of additional bonus information, including hundreds of problems and numerous notes that extend the text and provide important historical background. Depth and breadth of exposition make this set a valuable reference source for almost all areas of classical analysis. Part 2A is devoted to basic complex analysis. It interweaves three analytic threads associated with Cauchy, Riemann, and Weierstrass, respectively. Cauchy's view focuses on the differential and integral calculus of functions of a complex variable, with the key topics being the Cauchy integral formula and contour integration. For Riemann, the geometry of the complex plane is central, with key topics being fractional linear transformations and conformal mapping. For Weierstrass, the power series is king, with key topics being spaces of analytic functions, the product formulas of Weierstrass and Hadamard, and the Weierstrass theory of elliptic functions. Subjects in this volume that are often missing in other texts include the Cauchy integral theorem when the contour is the boundary of a Jordan region, continued fractions, two proofs of the big Picard theorem, the uniformization theorem, Ahlfors's function, the sheaf of analytic germs, and Jacobi, as well as Weierstrass, elliptic functions.

Orthogonal Polynomials in MATLAB

Author: Walter Gautschi
Publisher: SIAM
ISBN: 9781611974300
Release Date: 2016-05-23
Genre: Science

Techniques for generating orthogonal polynomials numerically have appeared only recently, within the last 30 or so years.÷Orthogonal Polynomials in MATLAB: Exercises and Solutions÷describes these techniques and related applications, all supported by MATLAB programs, and presents them in a unique format of exercises and solutions designed by the author to stimulate participation. Important computational problems in the physical sciences are included as models for readers to solve their own problems.÷

Krylov Subspace Methods

Author: Jörg Liesen
Publisher: OUP Oxford
ISBN: 9780191630323
Release Date: 2012-10-18
Genre: Mathematics

The mathematical theory of Krylov subspace methods with a focus on solving systems of linear algebraic equations is given a detailed treatment in this principles-based book. Starting from the idea of projections, Krylov subspace methods are characterised by their orthogonality and minimisation properties. Projections onto highly nonlinear Krylov subspaces can be linked with the underlying problem of moments, and therefore Krylov subspace methods can be viewed as matching moments model

The Mathematical Function Computation Handbook

Author: Nelson H.F. Beebe
Publisher: Springer
ISBN: 9783319641102
Release Date: 2017-08-20
Genre: Computers

This highly comprehensive handbook provides a substantial advance in the computation of elementary and special functions of mathematics, extending the function coverage of major programming languages well beyond their international standards, including full support for decimal floating-point arithmetic. Written with clarity and focusing on the C language, the work pays extensive attention to little-understood aspects of floating-point and integer arithmetic, and to software portability, as well as to important historical architectures. It extends support to a future 256-bit, floating-point format offering 70 decimal digits of precision. Select Topics and Features: references an exceptionally useful, author-maintained MathCW website, containing source code for the book’s software, compiled libraries for numerous systems, pre-built C compilers, and other related materials; offers a unique approach to covering mathematical-function computation using decimal arithmetic; provides extremely versatile appendices for interfaces to numerous other languages: Ada, C#, C++, Fortran, Java, and Pascal; presupposes only basic familiarity with computer programming in a common language, as well as early level algebra; supplies a library that readily adapts for existing scripting languages, with minimal effort; supports both binary and decimal arithmetic, in up to 10 different floating-point formats; covers a significant portion (with highly accurate implementations) of the U.S National Institute of Standards and Technology’s 10-year project to codify mathematical functions. This highly practical text/reference is an invaluable tool for advanced undergraduates, recording many lessons of the intermingled history of computer hardw are and software, numerical algorithms, and mathematics. In addition, professional numerical analysts and others will find the handbook of real interest and utility because it builds on research by the mathematical software community over the last four decades.

Die Lehre von den Kettenbr chen

Author: Oskar Perron
Publisher: Springer-Verlag
ISBN: 9783663122890
Release Date: 2013-11-21
Genre: Mathematics

eigenen Begriffssystemen bereichert worden, die man nicht gerade als jedermann geläufig voraussetzen darf. Die Versuchung lag nahe, durch Heranziehung solcher Theorien den Kettenbrüchen einen gelehrteren Anstrich zu geben. Aber dadurch wäre nicht nur die Lektüre unnötig erschwert, sondern das Wesen der Dinge zumeist verschleiert worden, und es bestände die Gefahr, daß mancher Leser den künstlichen Anstrich für das Wesentliche halten und die harmlose Unschuld, die sich darunter verbirgt, vielleicht gar nicht mehr sehen würde. Deshalb habe ich auf logistische Hieroglyphen, geheimnisvolle "Räume" usw. verzichtet und bin bei der klassischen Wortsprache und den klassischen Rechenmethoden ge blieben. Lediglich zweireihige Matrizes wurden gelegentlich verwandt, nämlich da, wo sie einen wirklichen methodischen Vorteil bieten. Der Matrixkalkül ist ja heute in viel weiteren Kreisen bekannt als vor 40 Jahren und gehört fast schon zu den Elementen; ich habe ihn trotzdem nicht vorausgesetzt, sondern in § 5 das Wenige, was davon gebraucht wird, kurz zusammengestellt. In neuerer Zeit haben die Kettenbrüche auch in der augewandten Mathematik, z. B. in der Elektrotechnik und bei analytischen Approximationsmethoden, Verwendung ge funden. Auch den Vertretern dieser Disziplinen, sowie manchen interessierten Laien, die es trotz unseres materialistischen Zeitalters doch immer noch gibt, glaube ich durch leichte Verständlichkeit besser zu dienen als durch Paradieren mit einer übertriebenen Gelehrsamkeit. Auf die Beigabe einer möglichst lückenlosen Bibliographie habe ich ebenso wie früher verzichtet; man findet eine solche, die von den Anfängen bis ins erste Jahrzehnt unseres Jahrhunderts reicht, bei Wölffing 1.