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Author: R. Wong
Publisher: SIAM
ISBN: 0898714974
Category : Mathematics
Languages : en
Pages : 554
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Book Description
This classic text remains the most up-to-date book to deal with asymptotic approximations of integrals. All results discussed are proved rigorously, and many of the approximation formulas are accompanied by error bounds. Included is a thorough discussion on multidimensional integrals, with references provided, plus the 'distributional method', not available elsewhere.
Author: R. Wong
Publisher: Academic Press
ISBN: 1483220710
Category : Mathematics
Languages : en
Pages : 561
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Book Description
Asymptotic Approximations of Integrals deals with the methods used in the asymptotic approximation of integrals. Topics covered range from logarithmic singularities and the summability method to the distributional approach and the Mellin transform technique for multiple integrals. Uniform asymptotic expansions via a rational transformation are also discussed, along with double integrals with a curve of stationary points. For completeness, classical methods are examined as well. Comprised of nine chapters, this volume begins with an introduction to the fundamental concepts of asymptotics, followed by a discussion on classical techniques used in the asymptotic evaluation of integrals, including Laplace's method, Mellin transform techniques, and the summability method. Subsequent chapters focus on the elementary theory of distributions; the distributional approach; uniform asymptotic expansions; and integrals which depend on auxiliary parameters in addition to the asymptotic variable. The book concludes by considering double integrals and higher-dimensional integrals. This monograph is intended for graduate students and research workers in mathematics, physics, and engineering.
Author: R. Wong
Publisher: SIAM
ISBN: 9780898719260
Category : Mathematics
Languages : en
Pages : 560
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Book Description
Asymptotic methods are frequently used in many branches of both pure and applied mathematics, and this classic text remains the most up-to-date book dealing with one important aspect of this area, namely, asymptotic approximations of integrals. In Asymptotic Approximations of Integrals, all results are proved rigorously, and many of the approximation formulas are accompanied by error bounds. A thorough discussion on multidimensional integrals is given, and references are provided. The book contains the "distributional method," which is not available elsewhere. Most of the examples in this text come from concrete applications. Since its publication twelve years ago, significant developments have occurred in the general theory of asymptotic expansions, including smoothing of the Stokes phenomenon, uniform exponentially improved asymptotic expansions, and hyperasymptotics. These new concepts belong to the area now known as "exponential asymptotics." Expositions of these new theories are available in papers published in various journals, but not yet in book form. Audience: this book can be used either as a text for graduate students in mathematics, physics, and engineering or as a reference for research workers in these fields.
Author: R. Wong
Publisher: SIAM
ISBN: 0898714974
Category : Mathematics
Languages : en
Pages : 554
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Book Description
This classic text remains the most up-to-date book to deal with asymptotic approximations of integrals. All results discussed are proved rigorously, and many of the approximation formulas are accompanied by error bounds. Included is a thorough discussion on multidimensional integrals, with references provided, plus the 'distributional method', not available elsewhere.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 543
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Book Description
Author: Karl W. Breitung
Publisher: Springer
ISBN: 3540490337
Category : Technology & Engineering
Languages : en
Pages : 157
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Book Description
This book gives a self-contained introduction to the subject of asymptotic approximation for multivariate integrals for both mathematicians and applied scientists. A collection of results of the Laplace methods is given. Such methods are useful for example in reliability, statistics, theoretical physics and information theory. An important special case is the approximation of multidimensional normal integrals. Here the relation between the differential geometry of the boundary of the integration domain and the asymptotic probability content is derived. One of the most important applications of these methods is in structural reliability. Engineers working in this field will find here a complete outline of asymptotic approximation methods for failure probability integrals.
Author: Roderick Wong
Publisher: Boston [Mass.] ; Toronto : Academic Press
ISBN: 9780127625355
Category : Mathematics
Languages : en
Pages : 544
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Book Description
Author: Nico M. Temme
Publisher: World Scientific Publishing Company
ISBN: 9789814612159
Category : Differential equations
Languages : en
Pages : 0
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Book Description
This book gives introductory chapters on the classical basic and standard methods for asymptotic analysis, such as Watson's lemma, Laplace's method, the saddle point and steepest descent methods, stationary phase and Darboux's method. The methods, explained in great detail, will obtain asymptotic approximations of the well-known special functions of mathematical physics and probability theory. After these introductory chapters, the methods of uniform asymptotic analysis are described in which several parameters have influence on typical phenomena: turning points and transition points, coinciding saddle and singularities. In all these examples, the special functions are indicated that describe the peculiar behavior of the integrals. The text extensively covers the classical methods with an emphasis on how to obtain expansions, and how to use the results for numerical methods, in particular for approximating special functions. In this way, we work with a computational mind: how can we use certain expansions in numerical analysis and in computer programs, how can we compute coefficients, and so on.
Author:
Publisher:
ISBN:
Category : Electronic books
Languages : en
Pages : 32
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Book Description
This thesis analyzes asymptotic approximations expansions for integrals, with several examples given. The main part of this research consists in studying the function g(x) = (1 + 1=x)x, which has the limit e as x → ∞. In a 2014 paper C.-P. Chen and J. Choi previously studied this function through an asymptotic expansion for large x. Our main focus is on the coefficients that appear in their expansion. Chen and Choi obtained an explicit formula for the coefficients, but it involves a sum of terms that grows exponentially in number. Our contribution is to find the coefficients in a more practical way, and also to determine the asymptotic behavior of the nth term as n → ∞. We derive a recursion formula, and we show it is simple to use and is numerically stable. We then use Cauchy’s integral formula to derive an explicit integral representation for the coefficients. From this we approximate the late coefficients by residue theory, and this approximation consists of two simple terms. We show the accuracy of the approximation with some numerical examples. We finally determine an integral representation of the error term in our asymptotic approximation, and from this show that is of smaller order of magnitude than the two leading terms.
Author: Norman Bleistein
Publisher: Courier Corporation
ISBN: 0486650820
Category : Mathematics
Languages : en
Pages : 453
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Book Description
Excellent introductory text, written by two experts, presents a coherent and systematic view of principles and methods. Topics include integration by parts, Watson's lemma, LaPlace's method, stationary phase, and steepest descents. Additional subjects include the Mellin transform method and less elementary aspects of the method of steepest descents. 1975 edition.
Author: R. B. Paris
Publisher: Cambridge University Press
ISBN: 9781139430128
Category : Mathematics
Languages : en
Pages : 452
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Book Description
Asymptotics and Mellin-Barnes Integrals, first published in 2001, provides an account of the use and properties of a type of complex integral representation that arises frequently in the study of special functions typically of interest in classical analysis and mathematical physics. After developing the properties of these integrals, their use in determining the asymptotic behaviour of special functions is detailed. Although such integrals have a long history, the book's account includes recent research results in analytic number theory and hyperasymptotics. The book also fills a gap in the literature on asymptotic analysis and special functions by providing a thorough account of the use of Mellin-Barnes integrals that is otherwise not available in other standard references on asymptotics.