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The book presents integral formulations for partial differential equations, with the focus on spherical and plane integral operators. The integral relations are obtained for different elliptic and parabolic equations, and both direct and inverse mean value relations are studied. The derived integral equations are used to construct new numerical methods for solving relevant boundary value problems, both deterministic and stochastic based on probabilistic interpretation of the spherical and plane integral operators.
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Functional analysis -- Linear function spaces and their duals -- Sobolev spaces and other spaces of "smooth" functions, embedding theorems, trace theorems. --- Harmonic analysis on Euclidean spaces -- Harmonic analysis in several variables -- Maximal functions, Littlewood-Paley theory. --- Harmonic analysis. --- Inequalities (Mathematics). --- Partial differential equations -- General topics -- Inequalities involving derivatives and differential and integral operators, inequalities for integrals. --- Partial differential equations -- General topics -- Variational methods. --- Real functions -- Inequalities -- Inequalities involving derivatives and differential and integral operators.
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This volume is dedicated to Professor Stefan Samko on the occasion of his seventieth birthday. The contributions display the range of his scientific interests in harmonic analysis and operator theory. Particular attention is paid to fractional integrals and derivatives, singular, hypersingular and potential operators in variable exponent spaces, pseudodifferential operators in various modern function and distribution spaces, as well as related applications, to mention but a few. Most of the contributions were originally presented at two conferences in Lisbon and Aveiro, Portugal, in June‒July 2011.
Harmonic analysis. --- Operator theory. --- Operator theory --- Harmonic analysis --- Integral operators --- Operator spaces --- Civil & Environmental Engineering --- Engineering & Applied Sciences --- Operations Research --- Analysis (Mathematics) --- Functions, Potential --- Potential functions --- Mathematics. --- Potential theory (Mathematics). --- Potential Theory. --- Abstract Harmonic Analysis. --- Operator Theory. --- Functional analysis --- Banach algebras --- Calculus --- Mathematical analysis --- Mathematics --- Bessel functions --- Fourier series --- Harmonic functions --- Time-series analysis --- Green's operators --- Green's theorem --- Potential functions (Mathematics) --- Potential, Theory of --- Mechanics --- Samko, S. G. --- Samko, Stefan Grigorʹevich --- Samko, Stephan G.
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The approximation of functions by linear positive operators is an important research topic in general mathematics and it also provides powerful tools to application areas such as computer-aided geometric design, numerical analysis, and solutions of differential equations. q-Calculus is a generalization of many subjects, such as hypergeometric series, complex analysis, and particle physics. This monograph is an introduction to combining approximation theory and q-Calculus with applications, by using well- known operators. The presentation is systematic and the authors include a brief summary of the notations and basic definitions of q-calculus before delving into more advanced material. The many applications of q-calculus in the theory of approximation, especially on various operators, which includes convergence of operators to functions in real and complex domain forms the gist of the book. This book is suitable for researchers and students in mathematics, physics and engineering, and for professionals who would enjoy exploring the host of mathematical techniques and ideas that are collected and discussed in the book.
Calculus --- Operator theory --- Civil & Environmental Engineering --- Engineering & Applied Sciences --- Operations Research --- Calculus. --- Integral operators. --- Operators, Integral --- Analysis (Mathematics) --- Fluxions (Mathematics) --- Infinitesimal calculus --- Limits (Mathematics) --- Mathematics. --- Approximation theory. --- Functional analysis. --- Functions of complex variables. --- Approximations and Expansions. --- Functions of a Complex Variable. --- Functional Analysis. --- Integrals --- Mathematical analysis --- Functions --- Geometry, Infinitesimal --- Functional calculus --- Calculus of variations --- Functional equations --- Integral equations --- Complex variables --- Elliptic functions --- Functions of real variables --- Math --- Science --- Theory of approximation --- Functional analysis --- Polynomials --- Chebyshev systems --- Operator theory.
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