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During the last few years, the theory of operator algebras, particularly non-self-adjoint operator algebras, has evolved dramatically, experiencing both international growth and interfacing with other important areas. The present volume presents a survey of some of the latest developments in the field in a form that is detailed enough to be accessible to advanced graduate students as well as researchers in the field. Among the topics treated are: operator spaces, Hilbert modules, limit algebras, reflexive algebras and subspaces, relations to basis theory, C* algebraic quantum groups, endomorphisms of operator algebras, conditional expectations and projection maps, and applications, particularly to wavelet theory. The volume also features an historical paper offering a new approach to the Pythagoreans' discovery of irrational numbers.
Conferences - Meetings --- Operator algebras --- Congresses --- Operator theory. --- Functional analysis. --- Fourier analysis. --- Special functions. --- Operator Theory. --- Functional Analysis. --- Fourier Analysis. --- Special Functions. --- Special functions --- Mathematical analysis --- Analysis, Fourier --- Functional calculus --- Calculus of variations --- Functional equations --- Integral equations --- Functional analysis --- Operator algebras - Congresses
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The Advanced Study Institute brought together researchers in the main areas of special functions and applications to present recent developments in the theory, review the accomplishments of past decades, and chart directions for future research. Some of the topics covered are orthogonal polynomials and special functions in one and several variables, asymptotic, continued fractions, applications to number theory, combinatorics and mathematical physics, integrable systems, harmonic analysis and quantum groups, Painlevé classification.
Functions, Special --- Fonctions spéciales --- Congresses. --- Congrès --- Special functions --- Mathematical analysis --- Mathematics --- Physical Sciences & Mathematics --- Calculus --- Fonctions spéciales --- Congrès --- Special functions. --- Fourier analysis. --- Group theory. --- Combinatorics. --- Number theory. --- Special Functions. --- Fourier Analysis. --- Group Theory and Generalizations. --- Number Theory. --- Number study --- Numbers, Theory of --- Algebra --- Combinatorics --- Groups, Theory of --- Substitutions (Mathematics) --- Analysis, Fourier --- Fonctions spéciales.
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517.58 --- Academic collection --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials. --- Theses --- 517.58 Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials.
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Elliptic functions --- Fonctions elliptiques --- 517.58 --- Elliptic integrals --- Functions, Elliptic --- Integrals, Elliptic --- Transcendental functions --- Functions of complex variables --- Integrals, Hyperelliptic --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials. --- Elliptic functions. --- 517.58 Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials. --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials --- Fonctions elliptiques. --- Functies (Elliptische).
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Functions, Special --- Orthogonal polynomials --- Academic collection --- 517.518.8 --- 517.518.8 Approximation of functions by polynomials and their generalizations --- Approximation of functions by polynomials and their generalizations --- Special functions --- Fourier analysis --- Functions, Orthogonal --- Polynomials --- Mathematical analysis --- Special functions. --- Computer mathematics. --- Topological groups. --- Lie groups. --- Combinatorics. --- Differential equations. --- Fourier analysis. --- Special Functions. --- Computational Science and Engineering. --- Topological Groups, Lie Groups. --- Ordinary Differential Equations. --- Fourier Analysis. --- Analysis, Fourier --- 517.91 Differential equations --- Differential equations --- Combinatorics --- Algebra --- Groups, Lie --- Lie algebras --- Symmetric spaces --- Topological groups --- Groups, Topological --- Continuous groups --- Computer mathematics --- Electronic data processing --- Mathematics
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Harmonic analysis. Fourier analysis --- Orthogonal polynomials --- Asymptotic theory --- 517.58 --- #WWIS:ANAL --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials. --- Asymptotic theory. --- 517.58 Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials.
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Numerical solutions of algebraic equations --- 517.58 --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials. --- Interval analysis (Mathematics) --- Iterative methods (Mathematics) --- Polynomials. --- Interval analysis (Mathematics). --- Iterative methods (Mathematics). --- 517.58 Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials.
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Mathematical physics --- Painlevé equations --- Physique mathématique --- Asymptotic theory --- Congresses --- Théorie asymptotique --- Congrès --- Painleve equations --- 517.1 --- 517.58 --- Physical mathematics --- Physics --- Equations, Painlevé --- Functions, Painlevé --- Painlevé functions --- Painlevé transcendents --- Transcendents, Painlevé --- Differential equations, Nonlinear --- Introduction to analysis --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials. --- Mathematics --- 517.58 Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials. --- 517.1 Introduction to analysis --- Painlevé equations --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials --- Painleve equations - Congresses. --- Mathematical physics - Asymptotic theory - Congresses.
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Orthogonale rationale functies (ORFs) met vaste polen vormen een natuurlijke veralgemening van orthogonale veeltermen. Talrijke resultaten zijn reeds veralgemeend naar het rationale geval, maar er zijn weinig gevallen waarin expliciete uitdrukkingen gekend zijn voor ORFs. Tevens beperkte het onderzoek van ORFs op een deelset van de reë le as zich tot nu toe voornamelijk tot het geval van rationale functies met reële polen. In het eerste deel van deze thesis leiden we nieuwe expliciete uitdrukkingen af voor ORFs en veralgemenen we bestaande uitdrukkingen naar het geval van willekeurig complexe polen. Vervolgens gebruiken we deze uitdrukkingen om vergelijkingen te bekomen voor de knooppunten en gewichten in rationale kwadratuurformules overeenkomstig de Chebyshev gewichtsfuncties op de complexe eenheidscirkel en op het interval. In het tweede deel veralgemenen we de drie-term recursiebetrekking voor ORFs op een deelset van de reële as naar het geval van willekeurig complexe polen en geven we een Favard-type stelling voor rationale functies gegenereerd door een dergelijke drie-term recursiebetrekking. Als toepassing bestuderen we geassocieerde rationale functies gebaseerd op de drie-term recursiebetrekking met verschoven recursie-coëfficiënten. Vervolgens bewijzen we een relatie tussen ORFs op de complexe eenheidscirkel en op het interval. Om dit gedeelte af te sluiten gebruiken we deze relatie dan om verschillende soorten convergentie te onderzoeken en om asymptotische formules af te leiden voor de recursie-coëfficiënten, voor de ORFs op het interval. Tot slot bestuderen we in het laatste deel van deze thesis het verband tussen ORFs en de rationale Lanczos methode voor Hermitische matrices. Orthogonal rational functions (ORFs) with prescribed poles are a natural generalization of orthogonal polynomials. Many results have already been generalized to the rational case. However, there are less cases in which explicit expressions are known for the ORFs. Moreover, the theory of orthogonality on a subset of the real line has so far been restricted to the case of rational functions with all real poles. In the first part of this thesis, we derive new explicit expressions for ORFs and extend existing expressions to the case of arbitrary complex poles. We then use these expressions to obtain equations for the nodes and weights in rational quadrature formulas associated with the Chebyshev weight functions on the unit circle and on the interval. In the second part, we generalize the three-term recurrence for ORFs on a subset of the real line to the case of arbitrary complex poles, and give a Favard-type theorem for rational functions generated by such a three-term recurrence. As an application, we study associated rational functions based on the three-term recurrence with shifted recurrence coefficients. Next, we prove a relation between ORFs on the unit circle and on the interval. To conclude this part, we then use this relation to study different types of convergence, and to derive asymptotic formulas for the recurrence coefficients, for ORFs on the interval. Finally, in the last part of this thesis we study the relation between ORFs and the rational Lanczos method for Hermitian matrices. Orthogonale rationale functies (ORFs) met vaste polen vormen een natuurlijke veralgemening van orthogonale veeltermen. Talrijke resultaten zijn reeds veralgemeend naar het rationale geval, maar er zijn weinig gevallen waarin expliciete uitdrukkingen gekend zijn voor ORFs. Tevens beperkte het onderzoek van ORFs op een deelset van de reële as zich tot nu toe voornamelijk tot het geval van rationale functies met reële polen. In het eerste deel van deze thesis leiden we nieuwe expliciete uitdrukkingen af voor ORFs en veralgemenen we bestaande uitdrukkingen naar het geval van willekeurig complexe polen. Vervolgens gebruiken we deze uitdrukkingen om vergelijkingen te bekomen voor de knooppunten en gewichten in rationale kwadratuurformules overeenkomstig de Chebyshev gewichtsfuncties op de complexe eenheidscirkel en op het interval. In het tweede deel veralgemenen we de drie-term recursiebetrekking voor ORFs op een deelset van de reële as naar het geval van willekeurig complexe polen en geven we een Favard-type stelling voor rationale functies gegenereerd door een dergelijke drie-term recursiebetrekking. Als toepassing bestuderen we geassocieerde rationale functies gebaseerd op de drie-term recursiebetrekking met verschoven recursie-coëfficiënten. Vervolgens bewijzen we een relatie tussen ORFs op de complexe eenheidscirkel en op het interval. Om dit gedeelte af te sluiten gebruiken we deze relatie dan om verschillende soorten convergentie te onderzoeken en om asymptotische formules af te leiden voor de recursie-coëfficiënten, voor de ORFs op het interval. Tot slot bestuderen we in het laatste deel van deze thesis het verband tussen ORFs en de rationale Lanczos methode voor Hermitische matrices.
517.58 <043> --- 519.64 <043> --- 519.65 <043> --- Academic collection --- 681.3*G<043> --- Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials.--Dissertaties --- Numerical methods for solution of integral equations. Quadrature formulae--Dissertaties --- Approximation. Interpolation--Dissertaties --- Mathematics of computing--Dissertaties --- Theses --- 517.58 <043> Special functions. Hyperbolic functions. Euler integrals. Gamma functions. Elliptic functions and integrals. Bessel functions. Other cylindrical functions. Spherical functions. Legendre polynomials. Orthogonal polynomials. Chebyshev polynomials.--Dissertaties
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