Results 21 to 30 of about 1,586 (179)
m-Isometric block Toeplitz operators
Journal of Inequalities and Applications, 2019 In this paper, we study m-isometric block Toeplitz operators with trigonometric symbols. In addition, we give a necessary and sufficient condition for block Toeplitz operators with trigonometric polynomial symbols to be m-contractive.
Eungil Ko, Jongrak Lee
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Polynomial-Exponential Bounds for Some Trigonometric and Hyperbolic Functions
Axioms, 2021 Recent advances in mathematical inequalities suggest that bounds of polynomial-exponential-type are appropriate for evaluating key trigonometric functions.
Yogesh J. Bagul +3 more
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SOME ASPECTS OF THE THEORY OF WAVELETS
Pesquimat, 2014 The aim of this paper is to briefly discuss some strategies that have been developed for the construction of trigonometric polynomial m0 under certain conditions.
Luis Miguel Núñez Ramírez +2 more
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Construction of Cubic Trigonometric Curves with an Application of Curve Modelling
Mathematics, 2022 This paper introduces new trigonometric basis functions (TBF) in polynomial and rational form with two shape parameters (SPs). Some classical characteristics, such as the partition of unity, positivity, symmetry, CHP, local control and invariance under ...
Abdul Majeed +3 more
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Crystallization of Random Trigonometric Polynomials [PDF]
Journal of Statistical Physics, 2006 10 pages, 3 ...
Farmer, David W., Yerrington, Mark
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Efficient spectral estimation by MUSIC and ESPRIT with application to sparse FFT
Frontiers in Applied Mathematics and Statistics, 2016 In spectral estimation, one has to determine all parameters of an exponential sum for finitely many (noisy)sampled data of this exponential sum.Frequently used methods for spectral estimation are MUSIC (MUltiple SIgnal Classification) and ESPRIT ...
Daniel ePotts +2 more
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Trigonometric Polynomials and Lattice Points [PDF]
Proceedings of the American Mathematical Society, 1992 In this paper we study the distribution of lattice points on arcs of circles centered at the origin. We show that on such a circle of radius R R , an arc whose length is smaller than 2 R 1 / 2
Cilleruelo, J., Cordoba, A.
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Journal of Taibah University for Science, 2020 This article deals with the development of the number of periodic solutions for ordinary differential equations. We investigated focal values for first-order non-autonomous differential equation for periodic solutions from a fine focus $\mathfrak {z}=0 $.
Saima Akram +4 more
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Perspectives in Education, 2023 This article focuses on first-year university students’ understanding of concepts related to third-degree polynomial and trigonometric functions that they encountered during their study of Grade 12 mathematics.
Aneshkumar Maharaj
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Approximation of classes B^ω_p,θ of periodic functions of several variables by polynomials with spectrum from cubic areas (in Ukrainian) [PDF]
Математичні Студії, 2011 We have obtained exact order estimates for error of approximation of classes B^ω_p,θ of periodic functions of several variables by trigonometric polynomials with spectrum from cubic areas.
S. A. Stasyuk
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