Theory of Approximate Functional Equations

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Publisher : Academic Press
ISBN 13 : 012803971X
Total Pages : 148 pages
Book Rating : 4.1/5 (28 download)

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Book Synopsis Theory of Approximate Functional Equations by : Madjid Eshaghi Gordji

Download or read book Theory of Approximate Functional Equations written by Madjid Eshaghi Gordji and published by Academic Press. This book was released on 2016-03-03 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presently no other book deals with the stability problem of functional equations in Banach algebras, inner product spaces and amenable groups. Moreover, in most stability theorems for functional equations, the completeness of the target space of the unknown functions contained in the equation is assumed. Recently, the question, whether the stability of a functional equation implies this completeness, has been investigated by several authors. In this book the authors investigate these developments in the theory of approximate functional equations. A useful text for graduate seminars and of interest to a wide audience including mathematicians and applied researchers Presents recent developments in the theory of approximate functional equations Discusses the stability problem of functional equations in Banach algebras, inner product spaces and amenable groups

Handbook of Functional Equations

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Publisher : Springer
ISBN 13 : 1493912860
Total Pages : 394 pages
Book Rating : 4.4/5 (939 download)

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Book Synopsis Handbook of Functional Equations by : Themistocles M. Rassias

Download or read book Handbook of Functional Equations written by Themistocles M. Rassias and published by Springer. This book was released on 2014-11-21 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook consists of seventeen chapters written by eminent scientists from the international mathematical community, who present important research works in the field of mathematical analysis and related subjects, particularly in the Ulam stability theory of functional equations. The book provides an insight into a large domain of research with emphasis to the discussion of several theories, methods and problems in approximation theory, analytic inequalities, functional analysis, computational algebra and applications. The notion of stability of functional equations has its origins with S. M. Ulam, who posed the fundamental problem for approximate homomorphisms in 1940 and with D. H. Hyers, Th. M. Rassias, who provided the first significant solutions for additive and linear mappings in 1941 and 1978, respectively. During the last decade the notion of stability of functional equations has evolved into a very active domain of mathematical research with several applications of interdisciplinary nature. The chapters of this handbook focus mainly on both old and recent developments on the equation of homomorphism for square symmetric groupoids, the linear and polynomial functional equations in a single variable, the Drygas functional equation on amenable semigroups, monomial functional equation, the Cauchy–Jensen type mappings, differential equations and differential operators, operational equations and inclusions, generalized module left higher derivations, selections of set-valued mappings, D’Alembert’s functional equation, characterizations of information measures, functional equations in restricted domains, as well as generalized functional stability and fixed point theory.

Developments in Functional Equations and Related Topics

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Publisher : Springer
ISBN 13 : 331961732X
Total Pages : 354 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Developments in Functional Equations and Related Topics by : Janusz Brzdęk

Download or read book Developments in Functional Equations and Related Topics written by Janusz Brzdęk and published by Springer. This book was released on 2017-08-14 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents current research on Ulam stability for functional equations and inequalities. Contributions from renowned scientists emphasize fundamental and new results, methods and techniques. Detailed examples are given to theories to further understanding at the graduate level for students in mathematics, physics, and engineering. Key topics covered in this book include: Quasi means Approximate isometries Functional equations in hypergroups Stability of functional equations Fischer-Muszély equation Haar meager sets and Haar null sets Dynamical systems Functional equations in probability theory Stochastic convex ordering Dhombres functional equation Nonstandard analysis and Ulam stability This book is dedicated in memory of Staniłsaw Marcin Ulam, who posed the fundamental problem concerning approximate homomorphisms of groups in 1940; which has provided the stimulus for studies in the stability of functional equations and inequalities.

On Applications and Theory of Functional Equations

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Publisher : Academic Press
ISBN 13 : 1483262650
Total Pages : 65 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis On Applications and Theory of Functional Equations by : J. Aczél

Download or read book On Applications and Theory of Functional Equations written by J. Aczél and published by Academic Press. This book was released on 2014-05-12 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: On Applications and Theory of Functional Equations focuses on the principles and advancement of numerical approaches used in functional equations. The publication first offers information on the history of functional equations, noting that the research on functional equations originated in problems related to applied mathematics. The text also highlights the influence of J. d'Alembert, S. D. Poisson, E. Picard, and A. L. Cauchy in promoting the processes of numerical analyses involving functional equations. The role of vectors in solving functional equations is also noted. The book ponders on the international Fifth Annual Meeting on Functional Equations, held in Waterloo, Ontario, Canada on April 24-30, 1967. The meeting gathered participants from America, Asia, Australia, and Europe. One of the topics presented at the meeting focuses on the survey of materials dealing with the progress of approaches in the processes and methodologies involved in solving problems dealing with functional equations. The influence, works, and contributions of A. L. Cauchy, G. Darboux, and G. S. Young to the field are also underscored. The publication is a valuable reference for readers interested in functional equations.

Functional Analysis, Approximation Theory, and Numerical Analysis

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Publisher : World Scientific
ISBN 13 : 9789810207373
Total Pages : 342 pages
Book Rating : 4.2/5 (73 download)

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Book Synopsis Functional Analysis, Approximation Theory, and Numerical Analysis by : John Michael Rassias

Download or read book Functional Analysis, Approximation Theory, and Numerical Analysis written by John Michael Rassias and published by World Scientific. This book was released on 1994 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of papers written by outstanding mathematicians. It deals with both theoretical and applied aspects of the mathematical contributions of BANACH, ULAM, and OSTROWSKI, which broaden the horizons of Functional Analysis, Approximation Theory, and Numerical Analysis in accordance with contemporary mathematical standards.

Stability of Some Advanced Functional Equations in Various Spaces

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Publisher : Springer Nature
ISBN 13 : 3031337042
Total Pages : 260 pages
Book Rating : 4.0/5 (313 download)

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Book Synopsis Stability of Some Advanced Functional Equations in Various Spaces by : Hemen Dutta

Download or read book Stability of Some Advanced Functional Equations in Various Spaces written by Hemen Dutta and published by Springer Nature. This book was released on 2023-08-14 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book aims to present several new results concerning solution and various stabilities of some functional equations in various spaces. The chapters consider various spaces to investigate stabilities justifying that stability results hold well in those spaces. It also includes results proving new insight to analyze approximate solutions to a given equation whenever uncertainty occurs. The presentation of the book should be useful for graduated students and researchers interested in the theory of functional equations to understand the useful ideas involved and problems to study further.

An Introduction to the Approximation of Functions

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Publisher : Courier Corporation
ISBN 13 : 9780486640693
Total Pages : 164 pages
Book Rating : 4.6/5 (46 download)

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Book Synopsis An Introduction to the Approximation of Functions by : Theodore J. Rivlin

Download or read book An Introduction to the Approximation of Functions written by Theodore J. Rivlin and published by Courier Corporation. This book was released on 1981-01-01 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematics of Computing -- Numerical Analysis.

Applied Functional Analysis. Approximation Methods and Computers

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Publisher : CRC Press
ISBN 13 : 9781420050127
Total Pages : 408 pages
Book Rating : 4.0/5 (51 download)

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Book Synopsis Applied Functional Analysis. Approximation Methods and Computers by : S.S. Kutateladze

Download or read book Applied Functional Analysis. Approximation Methods and Computers written by S.S. Kutateladze and published by CRC Press. This book was released on 2010-12-12 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the most remarkable papers of L.V. Kantorovich in applied and numerical mathematics. It explores the principal directions of Kantorovich's research in approximate methods. The book covers descriptive set theory and functional analysis in semi-ordered vector spaces.

On Functions and Functional Equations

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Publisher : CRC Press
ISBN 13 : 1000156990
Total Pages : 172 pages
Book Rating : 4.0/5 (1 download)

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Book Synopsis On Functions and Functional Equations by : J. Smital

Download or read book On Functions and Functional Equations written by J. Smital and published by CRC Press. This book was released on 2020-08-26 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: On Functions and Functional Equations introduces the main topics in iteration theory and the theory of functional equations with emphasis on applications in the fields of mathematics, physics, biology, chemistry, and electronics and mechanical engineering. The book contains many classical results as well as important, more recent results. It also includes numerous exercise and some problems that have yet to be resolved. The book is accessible to readers having a secondary level mathematical education.

Frontiers in Functional Equations and Analytic Inequalities

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Publisher : Springer Nature
ISBN 13 : 3030289508
Total Pages : 746 pages
Book Rating : 4.0/5 (32 download)

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Book Synopsis Frontiers in Functional Equations and Analytic Inequalities by : George A. Anastassiou

Download or read book Frontiers in Functional Equations and Analytic Inequalities written by George A. Anastassiou and published by Springer Nature. This book was released on 2019-11-23 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents cutting edge research from the frontiers of functional equations and analytic inequalities active fields. It covers the subject of functional equations in a broad sense, including but not limited to the following topics: Hyperstability of a linear functional equation on restricted domains Hyers–Ulam’s stability results to a three point boundary value problem of nonlinear fractional order differential equations Topological degree theory and Ulam’s stability analysis of a boundary value problem of fractional differential equations General Solution and Hyers-Ulam Stability of Duo Trigintic Functional Equation in Multi-Banach Spaces Stabilities of Functional Equations via Fixed Point Technique Measure zero stability problem for the Drygas functional equation with complex involution Fourier Transforms and Ulam Stabilities of Linear Differential Equations Hyers–Ulam stability of a discrete diamond–alpha derivative equation Approximate solutions of an interesting new mixed type additive-quadratic-quartic functional equation. The diverse selection of inequalities covered includes Opial, Hilbert-Pachpatte, Ostrowski, comparison of means, Poincare, Sobolev, Landau, Polya-Ostrowski, Hardy, Hermite-Hadamard, Levinson, and complex Korovkin type. The inequalities are also in the environments of Fractional Calculus and Conformable Fractional Calculus. Applications from this book's results can be found in many areas of pure and applied mathematics, especially in ordinary and partial differential equations and fractional differential equations. As such, this volume is suitable for researchers, graduate students and related seminars, and all science and engineering libraries. The exhibited thirty six chapters are self-contained and can be read independently and interesting advanced seminars can be given out of this book.

Stability of Functional Equations in Random Normed Spaces

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Publisher : Springer Science & Business Media
ISBN 13 : 1461484774
Total Pages : 255 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Stability of Functional Equations in Random Normed Spaces by : Yeol Je Cho

Download or read book Stability of Functional Equations in Random Normed Spaces written by Yeol Je Cho and published by Springer Science & Business Media. This book was released on 2013-08-27 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the rapidly developing subject of mathematical analysis that deals primarily with stability of functional equations in generalized spaces. The fundamental problem in this subject was proposed by Stan M. Ulam in 1940 for approximate homomorphisms. The seminal work of Donald H. Hyers in 1941 and that of Themistocles M. Rassias in 1978 have provided a great deal of inspiration and guidance for mathematicians worldwide to investigate this extensive domain of research. The book presents a self-contained survey of recent and new results on topics including basic theory of random normed spaces and related spaces; stability theory for new function equations in random normed spaces via fixed point method, under both special and arbitrary t-norms; stability theory of well-known new functional equations in non-Archimedean random normed spaces; and applications in the class of fuzzy normed spaces. It contains valuable results on stability in random normed spaces, and is geared toward both graduate students and research mathematicians and engineers in a broad area of interdisciplinary research.

Functional Analysis and Approximation Theory in Numerical Analysis

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Publisher : SIAM
ISBN 13 : 0898710030
Total Pages : 81 pages
Book Rating : 4.8/5 (987 download)

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Book Synopsis Functional Analysis and Approximation Theory in Numerical Analysis by : R. S. Varga

Download or read book Functional Analysis and Approximation Theory in Numerical Analysis written by R. S. Varga and published by SIAM. This book was released on 1971-01-01 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surveys the enormous literature on numerical approximation of solutions of elliptic boundary problems by means of variational and finite element methods, requiring almost constant application of results and techniques from functional analysis and approximation theory to the field of numerical analysis.

An Introduction to the Theory of Functional Equations and Inequalities

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Publisher : Springer Science & Business Media
ISBN 13 : 3764387491
Total Pages : 595 pages
Book Rating : 4.7/5 (643 download)

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Book Synopsis An Introduction to the Theory of Functional Equations and Inequalities by : Marek Kuczma

Download or read book An Introduction to the Theory of Functional Equations and Inequalities written by Marek Kuczma and published by Springer Science & Business Media. This book was released on 2009-03-12 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marek Kuczma was born in 1935 in Katowice, Poland, and died there in 1991. After finishing high school in his home town, he studied at the Jagiellonian University in Kraków. He defended his doctoral dissertation under the supervision of Stanislaw Golab. In the year of his habilitation, in 1963, he obtained a position at the Katowice branch of the Jagiellonian University (now University of Silesia, Katowice), and worked there till his death. Besides his several administrative positions and his outstanding teaching activity, he accomplished excellent and rich scientific work publishing three monographs and 180 scientific papers. He is considered to be the founder of the celebrated Polish school of functional equations and inequalities. "The second half of the title of this book describes its contents adequately. Probably even the most devoted specialist would not have thought that about 300 pages can be written just about the Cauchy equation (and on some closely related equations and inequalities). And the book is by no means chatty, and does not even claim completeness. Part I lists the required preliminary knowledge in set and measure theory, topology and algebra. Part II gives details on solutions of the Cauchy equation and of the Jensen inequality [...], in particular on continuous convex functions, Hamel bases, on inequalities following from the Jensen inequality [...]. Part III deals with related equations and inequalities (in particular, Pexider, Hosszú, and conditional equations, derivations, convex functions of higher order, subadditive functions and stability theorems). It concludes with an excursion into the field of extensions of homomorphisms in general." (Janos Aczel, Mathematical Reviews) "This book is a real holiday for all the mathematicians independently of their strict speciality. One can imagine what deliciousness represents this book for functional equationists." (B. Crstici, Zentralblatt für Mathematik)

Functional Equations, Inequalities and Applications

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Publisher : Springer Science & Business Media
ISBN 13 : 940170225X
Total Pages : 221 pages
Book Rating : 4.4/5 (17 download)

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Book Synopsis Functional Equations, Inequalities and Applications by : Themistocles RASSIAS

Download or read book Functional Equations, Inequalities and Applications written by Themistocles RASSIAS and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional Equations, Inequalities and Applications provides an extensive study of several important equations and inequalities, useful in a number of problems in mathematical analysis. Subjects dealt with include the generalized Cauchy functional equation, the Ulam stability theory in the geometry of partial differential equations, stability of a quadratic functional equation in Banach modules, functional equations and mean value theorems, isometric mappings, functional inequalities of iterative type, related to a Cauchy functional equation, the median principle for inequalities and applications, Hadamard and Dragomir-Agarwal inequalities, the Euler formulae and convex functions and approximate algebra homomorphisms. Also included are applications to some problems of pure and applied mathematics. This book will be of particular interest to mathematicians and graduate students whose work involves functional equations, inequalities and applications.

On Applications and Theory of Functional Equations

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Publisher : Birkhauser
ISBN 13 : 9780817600037
Total Pages : pages
Book Rating : 4.6/5 ( download)

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Book Synopsis On Applications and Theory of Functional Equations by : Janos Aczel

Download or read book On Applications and Theory of Functional Equations written by Janos Aczel and published by Birkhauser. This book was released on 1980-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Riemann Zeta-Function

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Publisher : Courier Corporation
ISBN 13 : 0486140040
Total Pages : 548 pages
Book Rating : 4.4/5 (861 download)

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Book Synopsis The Riemann Zeta-Function by : Aleksandar Ivic

Download or read book The Riemann Zeta-Function written by Aleksandar Ivic and published by Courier Corporation. This book was released on 2012-07-12 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text covers exponential integrals and sums, 4th power moment, zero-free region, mean value estimates over short intervals, higher power moments, omega results, zeros on the critical line, zero-density estimates, and more. 1985 edition.

One-dimensional Functional Equations

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Publisher : Springer Science & Business Media
ISBN 13 : 9783764300845
Total Pages : 232 pages
Book Rating : 4.3/5 (8 download)

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Book Synopsis One-dimensional Functional Equations by : Genrich Belitskii

Download or read book One-dimensional Functional Equations written by Genrich Belitskii and published by Springer Science & Business Media. This book was released on 2003-06-20 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The monograph is devoted to the study of functional equations with the transformed argument on the real line and on the unit circle. Such equations systematically arise in dynamical systems, differential equations, probabilities, singularities of smooth mappings, and other areas. The purpose of the book is to present modern methods and new results in the subject, with an emphasis on a connection between local and global solvability. The general concepts developed in the book are applicable to multidimensional functional equations. Some of the methods are presented for the first time in the monograph literature. The book is addressed to graduates and researchers interested in dynamical systems, differential equations, operator theory, or the theory of functions and their applications.