Results 51 to 60 of about 69,419 (165)
Hybrid approximations via second order combined dynamic derivatives on time scales
Electronic Journal of Qualitative Theory of Differential Equations, 2007 This article focuses on the approximation of conventional second order derivative via the combined (diamond-$\alpha$) dynamic derivative on time scales with necessary smoothness conditions embedded.
Qin Sheng
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On constrained uniform approximation
International Journal of Mathematics and Mathematical Sciences, 2002 The problem of uniform approximants subject to Hermite interpolatory constraints is considered with an alternate approach. The uniqueness and the convergence aspects of this problem are also discussed. Our approach is based on work of P.
M. A. Bokhari
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Complexity, 2020 This article investigates an adaptive neural network (NN) control algorithm for marine surface vessels with time-varying output constraints and unknown external disturbances.
Wei Zhao, Li Tang, Yan-Jun Liu
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Optimal with Respect to Accuracy Recovery of Some Classes Functions by Fourier Series
Кібернетика та комп'ютерні технологіїIntroduction. Function approximation (approximation or restoration) is widely used in data analysis, model building, and forecasting. The goal of function approximation is to find the function that best approximates the original function.
Olena Kolomys
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Inner approximation algorithm for generalized linear multiplicative programming problems
Journal of Inequalities and Applications, 2018 An efficient inner approximation algorithm is presented for solving the generalized linear multiplicative programming problem with generalized linear multiplicative constraints.
Yingfeng Zhao, Juanjuan Yang
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Remote SensingConventional adaptive beamformers usually suffer from serious performance degradation when the receive array is imperfect and unknown sporadic interferences appear.
Yang Zou +5 more
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Diophantine approximation with mild divisibility constraints
Journal of Number Theory, 2006 Dirichlet's theorem on Diophantine approximation states that for any real \(\alpha\) and any \(N \geq 1\), there exists an integer \(n\) such that \(1 \leq n \leq N\) and \(\| n\alpha \| < N^{-1}\); here \(\| \cdot \| \) is the distance to the nearest integer function. There is a long history of estimates for \(\| n\alpha \| \) when \(n\) is subject to
Alkan, Emre +2 more
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Approximately Stable Matchings with General Constraints
, 2019 This paper focuses on two-sided matching where one side (a hospital or firm) is matched to the other side (a doctor or worker) so as to maximize a cardinal objective under general feasibility constraints. In a standard model, even though multiple doctors can be matched to a single hospital, a hospital has a responsive preference and a maximum quota ...
Kawase, Yasushi, Iwasaki, Atsushi
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Powered Descent Guidance via First-Order Optimization With Expansive Projection
IEEE AccessThis paper introduces a first-order method for solving optimal powered descent guidance (PDG) problems, that directly handles the nonconvex constraints associated with the maximum and minimum thrust bounds with varying mass and the pointing angle ...
Jiwoo Choi, Jong-Han Kim
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Uniqueness of Best Approximation with Coefficient Constraints
Rocky Mountain Journal of Mathematics, 1993 Let for given \(\alpha= (\alpha_ 1,\dots, \alpha_ n)\) and \(\beta= (\beta_ 1,\dots, \beta_ n)\), with \(-\infty\leq \alpha_ i< \beta_ i\leq\infty\), \(i=1,\dots, n\), and continuous functions \(u_ 1,\dots,u_ n\), set \(U(\alpha,\beta)= \{\sum_{i=1}^ n a_ i U_ i\); \(\alpha_ i\leq a_ i\leq\beta_ i\), \(i=1,\dots, n\}\). In this paper the conditions for
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