Discrepancy of Signed Measures and Polynomial Approximation (Springer Monographs in Mathematics) - Tapa blanda

Andrievskii, Vladimir V. V.; Blatt, Hans-Peter

9781441931467: Discrepancy of Signed Measures and Polynomial Approximation (Springer Monographs in Mathematics)

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ISBN 10: 1441931465 ISBN 13: 9781441931467

Editorial: Springer, 2010

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Analysis is the branch of mathematics concerned with limits of functions, sequences and series. Potential theory is the study of potential functions. This book is an authoritative and up-to-date introduction to both fields.

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The book is an authoritative and up-to-date introduction to the field of Analysis and Potential Theory dealing with the distribution zeros of classical systems of polynomials such as orthogonal polynomials, Chebyshev, Fekete and Bieberbach polynomials, best or near-best approximating polynomials on compact sets and on the real line. The main feature of the book is the combination of potential theory with conformal invariants, such as module of a family of curves and harmonic measure, to derive discrepancy estimates for signed measures if bounds for their logarithmic potentials or energy integrals are known a priori. Classical results of Jentzsch and Szeg� for the zero distribution of partial sums of power series can be recovered and sharpened by new discrepany estimates, as well as distribution results of Erd�s and Turn for zeros of polynomials bounded on compact sets in the complex plane.
Vladimir V. Andrievskii is Assistant Professor of Mathematics at Kent State University. Hans-Peter Blatt is Full Professor of Mathematics at Katholische Universit�t Eichst�tt.

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EditorialSpringer
A�o de publicaci�n2010
ISBN 10 1441931465
ISBN 13 9781441931467
Encuadernaci�nTapa blanda
IdiomaIngl�s
N�mero de p�ginas456
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9780387986524: Discrepancy of Signed Measures and Polynomial Approximation (Springer Monographs in Mathematics)

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ISBN 10: 0387986529 ISBN 13: 9780387986524
Editorial: Springer, 2001
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Discrepancy of Signed Measures and Polynomial Approximation

Vladimir V. Andrievskii|Hans-Peter Blatt

Publicado por Springer New York, 2010

ISBN 10: 1441931465 ISBN 13: 9781441931467

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Kartoniert / Broschiert. Condici�n: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Concise outline of basic facts of potential theory and quasiconformal mappings ensures book is appropriate introduction to non-experts who want to get an idea of applications of protential theory and geometric function theory in various fields of constructi. N� de ref. del art�culo: 4173603

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Discrepancy of Signed Measures and Polynomial Approximation

Hans-Peter Blatt

Publicado por Springer New York Dez 2010, 2010

ISBN 10: 1441931465 ISBN 13: 9781441931467

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Taschenbuch. Condici�n: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -A concise outline of the basic facts of potential theory and quasiconformal mappings makes this book an ideal introduction for non-experts who want to get an idea of applications of potential theory and geometric function theory in various fields of construction analysis. 456 pp. Englisch. N� de ref. del art�culo: 9781441931467

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Discrepancy of Signed Measures and Polynomial Approximation (Springer Monographs in Mathematics)

Andrievskii, Vladimir V. V.; Blatt, Hans-Peter

Publicado por Springer, 2010

ISBN 10: 1441931465 ISBN 13: 9781441931467

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Discrepancy of Signed Measures and Polynomial Approximation

Hans-Peter Blatt

Publicado por Springer New York, Springer US, 2010

ISBN 10: 1441931465 ISBN 13: 9781441931467

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Taschenbuch. Condici�n: Neu. Druck auf Anfrage Neuware - Printed after ordering - In many situations in approximation theory the distribution of points in a given set is of interest. For example, the suitable choiee of interpolation points is essential to obtain satisfactory estimates for the convergence of interpolating polynomials. Zeros of orthogonal polynomials are the nodes for Gauss quadrat ure formulas. Alternation points of the error curve char acterize the best approximating polynomials. In classieal complex analysis an interesting feature is the location of zeros of approximants to an analytie function. In 1918 R. Jentzsch [91] showed that every point of the circle of convergence of apower series is a limit point of zeros of its partial sums. This theorem of Jentzsch was sharpened by Szeg� [170] in 1923. He proved that for apower series with finite radius of convergence there is an infinite sequence of partial sums, the zeros of whieh are 'equidistributed' with respect to the angular measure. In 1929 Bernstein [27] stated the following theorem. Let f be a positive continuous function on [-1, 1]; if almost all zeros of the polynomials of best 2 approximation to f (in a weighted L -norm) are outside of an open ellipse c with foci at -1 and 1, then f has a continuous extension that is analytic in c. N� de ref. del art�culo: 9781441931467

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Discrepancy of Signed Measures and Polynomial Approximation

Hans-Peter Blatt

Publicado por Springer New York, Springer US Dez 2010, 2010

ISBN 10: 1441931465 ISBN 13: 9781441931467

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Librería: buchversandmimpf2000, Emtmannsberg, BAYE, Alemania

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Taschenbuch. Condici�n: Neu. This item is printed on demand - Print on Demand Titel. Neuware -In many situations in approximation theory the distribution of points in a given set is of interest. For example, the suitable choiee of interpolation points is essential to obtain satisfactory estimates for the convergence of interpolating polynomials. Zeros of orthogonal polynomials are the nodes for Gauss quadrat ure formulas. Alternation points of the error curve char acterize the best approximating polynomials. In classieal complex analysis an interesting feature is the location of zeros of approximants to an analytie function. In 1918 R. Jentzsch [91] showed that every point of the circle of convergence of apower series is a limit point of zeros of its partial sums. This theorem of Jentzsch was sharpened by Szeg� [170] in 1923. He proved that for apower series with finite radius of convergence there is an infinite sequence of partial sums, the zeros of whieh are 'equidistributed' with respect to the angular measure. In 1929 Bernstein [27] stated the following theorem. Let f be a positive continuous function on [-1, 1]; if almost all zeros of the polynomials of best 2 approximation to f (in a weighted L -norm) are outside of an open ellipse c with foci at -1 and 1, then f has a continuous extension that is analytic in c.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 456 pp. Englisch. N� de ref. del art�culo: 9781441931467

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