Generalized Associated Legendre Functions and Their Applications

Generalized Associated Legendre Functions and Their Applications PDF

Author: Nina Opanasivna Virchenko

Publisher: World Scientific

Published: 2001

Total Pages: 217

ISBN-13: 9812811788

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The various types of special functions have become essential tools for scientists and engineers. One of the important classes of special functions is of the hypergeometric type. It includes all classical hypergeometric functions such as the well-known Gaussian hypergeometric functions, the Bessel, Macdonald, Legendre, Whittaker, Kummer, Tricomi and Wright functions, the generalized hypergeometric functions ? Fq, Meijer's G -function, Fox's H -function, etc. Application of the new special functions allows one to increase considerably the number of problems whose solutions are found in a closed form, to examine these solutions, and to investigate the relationships between different classes of the special functions. This book deals with the theory and applications of generalized associated Legendre functions of the first and the second kind, P m, n ? ( z ) and Q m, n ? ( z ), which are important representatives of the hypergeometric functions. They occur as generalizations of classical Legendre functions of the first and the second kind respectively. The authors use various methods of contour integration to obtain important properties of the generalized associated Legnedre functions as their series representations, asymptotic formulas in a neighborhood of singular points, zero properties, connection with Jacobi functions, Bessel functions, elliptic integrals and incomplete beta functions. The book also presents the theory of factorization and composition structure of integral operators associated with the generalized associated Legendre function, the fractional integro-differential properties of the functions P m, n ? ( z ) and Q m, n ? ( z ), the classes of dual and triple integral equations associated with the function P m, n -1/2+i? (cha) etc. Contents: A General Information on Legendre Functions; The Generalized Associated Legendre Functions; The Series Representations of the Generalized Associated Legendre Functions; Relations Between Different Solutions of the Generalized Legendre Equation. Wronskians of Linearly Independent Solutions; Relations Between Contiguous Generalized Associated Legendre Functions; Differential Operators Generated by the Generalized Associated Legendre Equation; Asymptotic Formulas for the Generalized Associated Legendre Functions in a Neighborhood of Singular Points; Asymptotic Representations of the Generalized Associated Legendre Functions as the Functions of Parameters; Integral Representations of the Generalized Associated Legendre Functions of the First Kind; Integral Representations of the Generalized Associated Legendre Functions of the Second Kind; Zeros of the Generalized Associated Legendre Functions; Connection of the Generalized Associated Legendre Functions with the Jacobi Functions; and other topics. Readership: Graduate students and researchers in mathematics, physics and engineer

Generalized Associated Legendre Functions and Their Applications

Generalized Associated Legendre Functions and Their Applications PDF

Author: Nina Opanasivna Virchenko

Publisher: World Scientific

Published: 2001

Total Pages: 217

ISBN-13: 9810243537

DOWNLOAD EBOOK →

The various types of special functions have become essential tools for scientists and engineers. One of the important classes of special functions is of the hypergeometric type. It includes all classical hypergeometric functions such as the well-known Gaussian hypergeometric functions, the Bessel, Macdonald, Legendre, Whittaker, Kummer, Tricomi and Wright functions, the generalized hypergeometric functions ?Fq, Meijer's G-function, Fox's H-function, etc.Application of the new special functions allows one to increase considerably the number of problems whose solutions are found in a closed form, to examine these solutions, and to investigate the relationships between different classes of the special functions.This book deals with the theory and applications of generalized associated Legendre functions of the first and the second kind, Pm, n?(z) and Qm, n?(z), which are important representatives of the hypergeometric functions. They occur as generalizations of classical Legendre functions of the first and the second kind respectively. The authors use various methods of contour integration to obtain important properties of the generalized associated Legnedre functions as their series representations, asymptotic formulas in a neighborhood of singular points, zero properties, connection with Jacobi functions, Bessel functions, elliptic integrals and incomplete beta functions.The book also presents the theory of factorization and composition structure of integral operators associated with the generalized associated Legendre function, the fractional integro-differential properties of the functions Pm, n?(z) and Qm, n?(z), the classes of dual and triple integral equations associated with the function Pm, n-1/2+i?(chà) etc.

Advances in Dual Integral Equations

Advances in Dual Integral Equations PDF

Author: B N Mandal

Publisher: CRC Press

Published: 1998-12-18

Total Pages: 236

ISBN-13: 9780849306174

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The effectiveness of dual integral equations for handling mixed boundary value problems has established them as an important tool for applied mathematicians. Their many applications in mathematical physics have prompted extensive research over the last 25 years, and many researchers have made significant contributions to the methodology of solving and to the applications of dual integral equations. However, until now, much of this work has been available only in the form of research papers scattered throughout different journals. In Advances in Dual Integral Equations, the authors systematically present some of the recent developments in dual integral equations involving various special functions as kernel. They examine dual integral equations with Bessel, Legendre, and trigonometric functions as kernel plus dual integral equations involving inverse Mellin transforms. These can be particularly useful in studying certain mixed boundary value problems involving homogeneous media in continuum mechanics. However, when dealing with problems involving non-homogenous media, the corresponding equations may have different kernels. This application prompts the authors to conclude with a discussion of hybrid dual integral equations-mixed kernels with generalized associated Legendre functions and mixed kernels involving Bessel functions. Researchers in the theory of elasticity, fluid dynamics, and mathematical physics will find Advances in Dual Integral Equations a concise, one-stop resource for recent work addressing special functions as kernel.