Pade Approximants for Operators
Author | : A. Cuyt |
Publisher | : Springer |
Total Pages | : 148 |
Release | : 2006-12-08 |
Genre | : Mathematics |
ISBN | : 3540388788 |
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Author | : A. Cuyt |
Publisher | : Springer |
Total Pages | : 148 |
Release | : 2006-12-08 |
Genre | : Mathematics |
ISBN | : 3540388788 |
Author | : Annie Cuyt |
Publisher | : Springer |
Total Pages | : 160 |
Release | : 1984 |
Genre | : Mathematics |
ISBN | : |
Author | : A. Bultheel |
Publisher | : Birkhäuser |
Total Pages | : 277 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 303489306X |
The Pade approximation problem is, roughly speaking, the local approximation of analytic or meromorphic functions by rational ones. It is known to be important to solve a large scale of problems in numerical analysis, linear system theory, stochastics and other fields. There exists a vast literature on the classical Pade problem. However, these papers mostly treat the problem for functions analytic at 0 or, in a purely algebraic sense, they treat the approximation of formal power series. For certain problems however, the Pade approximation problem for formal Laurent series, rather than for formal power series seems to be a more natural basis. In this monograph, the problem of Laurent-Pade approximation is central. In this problem a ratio of two Laurent polynomials in sought which approximates the two directions of the Laurent series simultaneously. As a side result the two-point Pade approximation problem can be solved. In that case, two series are approximated, one is a power series in z and the other is a power series in z-l. So we can approximate two, not necessarily different functions one at zero and the other at infinity.
Author | : L. Wuytack |
Publisher | : |
Total Pages | : 404 |
Release | : 2014-09-01 |
Genre | : |
ISBN | : 9783662199978 |
Author | : |
Publisher | : Academic Press |
Total Pages | : 398 |
Release | : 1971-02-27 |
Genre | : Mathematics |
ISBN | : 0080955800 |
In this book, we study theoretical and practical aspects of computing methods for mathematical modelling of nonlinear systems. A number of computing techniques are considered, such as methods of operator approximation with any given accuracy; operator interpolation techniques including a non-Lagrange interpolation; methods of system representation subject to constraints associated with concepts of causality, memory and stationarity; methods of system representation with an accuracy that is the best within a given class of models; methods of covariance matrix estimation;methods for low-rank matrix approximations; hybrid methods based on a combination of iterative procedures and best operator approximation; andmethods for information compression and filtering under condition that a filter model should satisfy restrictions associated with causality and different types of memory.As a result, the book represents a blend of new methods in general computational analysis,and specific, but also generic, techniques for study of systems theory ant its particularbranches, such as optimal filtering and information compression.- Best operator approximation,- Non-Lagrange interpolation,- Generic Karhunen-Loeve transform- Generalised low-rank matrix approximation- Optimal data compression- Optimal nonlinear filtering
Author | : George Allen Baker |
Publisher | : Cambridge University Press |
Total Pages | : 762 |
Release | : 1996-01-26 |
Genre | : Mathematics |
ISBN | : 0521450071 |
The first edition of this book was reviewed in 1982 as "the most extensive treatment of Pade approximants actually available." This second edition has been thoroughly updated, with a substantial new chapter on multiseries approximants. Applications to statistical mechanics and critical phenomena are extensively covered, and there are newly extended sections devoted to circuit design, matrix Pade approximation, and computational methods. This succinct and straightforward treatment will appeal to scientists, engineers, and mathematicians alike.
Author | : L. Wuytack |
Publisher | : Springer |
Total Pages | : 403 |
Release | : 2006-11-15 |
Genre | : Mathematics |
ISBN | : 3540385118 |
Author | : Claude Brezinski |
Publisher | : Springer Science & Business Media |
Total Pages | : 556 |
Release | : 2012-12-06 |
Genre | : Mathematics |
ISBN | : 3642581692 |
The history of continued fractions is certainly one of the longest among those of mathematical concepts, since it begins with Euclid's algorithm for the great est common divisor at least three centuries B.C. As it is often the case and like Monsieur Jourdain in Moliere's "Ie bourgeois gentilhomme" (who was speak ing in prose though he did not know he was doing so), continued fractions were used for many centuries before their real discovery. The history of continued fractions and Pade approximants is also quite im portant, since they played a leading role in the development of some branches of mathematics. For example, they were the basis for the proof of the tran scendence of 11' in 1882, an open problem for more than two thousand years, and also for our modern spectral theory of operators. Actually they still are of great interest in many fields of pure and applied mathematics and in numerical analysis, where they provide computer approximations to special functions and are connected to some convergence acceleration methods. Con tinued fractions are also used in number theory, computer science, automata, electronics, etc ...
Author | : Lloyd N. Trefethen |
Publisher | : SIAM |
Total Pages | : 377 |
Release | : 2019-01-01 |
Genre | : Mathematics |
ISBN | : 1611975948 |
This is a textbook on classical polynomial and rational approximation theory for the twenty-first century. Aimed at advanced undergraduates and graduate students across all of applied mathematics, it uses MATLAB to teach the fields most important ideas and results. Approximation Theory and Approximation Practice, Extended Edition differs fundamentally from other works on approximation theory in a number of ways: its emphasis is on topics close to numerical algorithms; concepts are illustrated with Chebfun; and each chapter is a PUBLISHable MATLAB M-file, available online. The book centers on theorems and methods for analytic functions, which appear so often in applications, rather than on functions at the edge of discontinuity with their seductive theoretical challenges. Original sources are cited rather than textbooks, and each item in the bibliography is accompanied by an editorial comment. In addition, each chapter has a collection of exercises, which span a wide range from mathematical theory to Chebfun-based numerical experimentation. This textbook is appropriate for advanced undergraduate or graduate students who have an understanding of numerical analysis and complex analysis. It is also appropriate for seasoned mathematicians who use MATLAB.
Author | : A. Cuyt |
Publisher | : Elsevier |
Total Pages | : 289 |
Release | : 1987-03-01 |
Genre | : Computers |
ISBN | : 0080872476 |
While most textbooks on Numerical Analysis discuss linear techniques for the solution of various numerical problems, this book introduces and illustrates nonlinear methods. It presents several nonlinear techniques resulting mainly from the use of Padé approximants and rational interpolants.