Extremal polynomials and Riemann surfaces
著者
書誌事項
Extremal polynomials and Riemann surfaces
（Springer monographs in mathematics）
Springer, c2012
- : Softcover
- タイトル別名
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Ekstremal'nye mnogochleny i rimanovy poverkhnosti
Экстремальные многочлены и римановы поверхности
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注記
"Russian original edition published as "Ekstremal'nye Mnogochleny i Rimanovy Poverkhnosti", MCCME, Moscow, 2005"--T.p. verso
Includes bibliographical references (p. 137-143) and index
内容説明・目次
内容説明
The problems of conditional optimization of the uniform (or C-) norm for polynomials and rational functions arise in various branches of science and technology. Their numerical solution is notoriously difficult in case of high degree functions. The book develops the classical Chebyshev's approach which gives analytical representation for the solution in terms of Riemann surfaces. The techniques born in the remote (at the first glance) branches of mathematics such as complex analysis, Riemann surfaces and Teichmuller theory, foliations, braids, topology are applied to approximation problems.
The key feature of this book is the usage of beautiful ideas of contemporary mathematics for the solution of applied problems and their effective numerical realization. This is one of the few books where the computational aspects of the higher genus Riemann surfaces are illuminated. Effective work with the moduli spaces of algebraic curves provides wide opportunities for numerical experiments in mathematics and theoretical physics.
目次
1 Least deviation problems.- 2 Chebyshev representation of polynomials.- 3 Representations for the moduli space.- 4 Cell decomposition of the moduli space.- 5 Abel's equations.- 6 Computations in moduli spaces.- 7 The problem of the optimal stability polynomial.- Conclusion.- References.
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