Results 11 to 20 of about 11,999,664 (286)
About some exponential inequalities related to the sinc function [PDF]
Journal of Inequalities and Applications, 2018 In this paper, we prove some exponential inequalities involving the sinc function. We analyze and prove inequalities with constant exponents and inequalities with certain polynomial exponents. Also, we establish intervals in which these inequalities hold.
Marija Rašajski +2 more
doaj +12 more sources
A Lower Bound on the Sinc Function and Its Application [PDF]
The Scientific World Journal, 2014 A lower bound on the sinc function is given. Application for the sequence bnn=1∞ which related to Carleman inequality is given as well.
Yue Hu, Cristinel Mortici
doaj +6 more sources
A Sinc Function Analogue of Chebfun [PDF]
SIAM Journal of Scientific Computing, 2011 Chebfun is an established software system for computing with functions of a real variable, but its capabilities for handling functions with singularities are limited.
Lloyd N Trefethen
exaly +6 more sources
Polynomial function and derivative approximation of Sinc data
Journal of Complexity, 2009 Sinc methods consist of a family of one dimensional approximation procedures for approximating nearly every operation of calculus. These approximation procedures are obtainable via operations on Sinc interpolation formulas.
Frank Stenger
exaly +4 more sources
Fractal and Fractional, 2021 We shall discuss three methods of inverse Laplace transforms. A Sinc-Thiele approximation, a pure Sinc, and a Sinc-Gaussian based method. The two last Sinc related methods are exact methods of inverse Laplace transforms which allow us a numerical ...
Gerd Baumann
doaj +2 more sources
Frame set for shifted sinc-function [PDF]
Applied and Computational Harmonic Analysis, 2023 We prove that frame set $\mathcal{F}_g$ for imaginary shift of sinc-function $$g(t)=\frac{\sin\pi b(t-iw)}{t-iw}, \quad b,w\in\mathbb{R}\setminus\{0\}$$ can be described as $\mathcal{F}_g=\{(\alpha,\beta): \alpha\beta\leq 1, \beta\leq|b|\}.$ \\ In ...
Y. Belov, A. V. Semenov
semanticscholar +4 more sources
Adaptive Piecewise Poly-Sinc Methods for Ordinary Differential Equations
Algorithms, 2022 We propose a new method of adaptive piecewise approximation based on Sinc points for ordinary differential equations. The adaptive method is a piecewise collocation method which utilizes Poly-Sinc interpolation to reach a preset level of accuracy for the
Omar Khalil +3 more
doaj +2 more sources
Results in Applied Mathematics, 2023 In this paper, we use the nonclassical SE-sinc-collocation and nonclassical DE-sinc-collocation methods for the numerical solution of singular third-order boundary value problems. The novelty of the approach is based on using the new non-classical weight
A. Alipanah +2 more
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Remote Sensing, 2021 In this paper, we consider a new method for forest canopy height estimation using TanDEM-X single-pass radar interferometry. We exploit available information from sample-based, space-borne LiDAR systems, such as the Global Ecosystem Dynamics ...
Hao Chen +2 more
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Dual pulse shaping transmission with sinc‐function based complementary Nyquist pulses
IET Communications, 2022 Due to difficulties in manufacturing, data conversion devices with extremely high sampling rate are becoming the bottleneck in realising high‐speed communication systems with a large bandwidth.
Hang Li +4 more
doaj +2 more sources