Results 191 to 200 of about 45,618 (222)
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Chebyshev systems and estimation theory for discrete distributions
Statistics & Probability Letters, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Braverman, Mark, Lumelskii, Yan
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Algorithm 414: Chebyshev approximation of continuous functions by a Chebyshev system of functions
Communications of the ACM, 1971The second algorithm of Remez can be used to compute the minimax approximation to a function, ƒ( x ), by a linear combination of functions, { Q i ( x )} n 0 ...
G. H. Golub, L. B. Smith
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Some criteria and properties of Chebyshev systems
Siberian Mathematical Journal, 1995Let \(T^n [a, b]\) be the Chebyshev system of \(n\) functions on \([a, b]\). An isolated zero \(t\in [a, b]\) of a continuous function \(x\) is called nodal if either \(t\in \{a, b\}\) or \(t\in ]a, b[\) and the function \(x\) changes sign upon passage across \(t\), and \(t\) is nonnodal otherwise.
Rasa, I., Labsker, L. G.
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Pseudospectral Chebyshev Optimal Control of Constrained Nonlinear Dynamical Systems
Computational Optimization and Applications, 1998zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Elnagar, Gamal N., Kazemi, Mohammad A.
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Least Squares and Chebyshev Systems
2012As readers know, polynomials of degree n, in other words linear combinations of n + 1 monomials 1,…, t n , may have at most n real zeros. A far-reaching generalization of this fact raises a fundamental concept of Chebyshev systems, briefly, T-systems. Those systems are defined as follows.
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Chebyshev systems of locally analytic functions
Mathematical Notes, 1994Let \(\{f_1 (q), \dots, f_n(q)\}\) be a linearly independent system of continuous functions on any compact set \(Q\). The author introduces the notion of locally analytic functions and considers a ``polynomial'' \(P_\alpha (z)= \alpha_1 f_1 (z)+\dots +\alpha_n f_n (z)\), \(\alpha= (\alpha_1, \dots, \alpha_n)\in \mathbb{C}^n\). He describes the set \(Q\)
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A splitting Chebyshev collocation method for Schrödinger–Poisson system
Computational and Applied Mathematics, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hanquan Wang, Zhenguo Liang, Ronghua Liu
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Solution of a Scaled System via Chebyshev Polynomials
Journal of the Franklin Institute, 1984zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Chebyshev based continuous time power system operation approach
2015 IEEE Power & Energy Society General Meeting, 2015There is a growing interest to increase temporal resolution in power system optimization models in order to improve representation of intermittent renewable generation and thus capture more variability and costs. This increase in temporal resolution, however, presents important modeling challenges since the optimization problem complexity grows with ...
Marcelo Matus +3 more
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Chebyshev Polynomial Broad Learning System
2021 8th International Conference on Information, Cybernetics, and Computational Social Systems (ICCSS), 2021Shuang Feng +2 more
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