Results 31 to 40 of about 2,041 (214)

Trigonometric Approximation by Modulus of Smoothness in Lp,α (X)

open access: yesAl-Mustansiriyah Journal of Science, 2021
In this paper, we study the approximate properties of functions by means of trigonometric polynomials in weighted spaces. Relationships between modulus of smoothness of function derivatives and those of the jobs themselves are introduced. In the weighted
Mohammed Hamad Fayyadh, Alaa Adnan Auad
doaj   +1 more source

Nonperiodic Trigonometric Polynomial Approximation [PDF]

open access: yesJournal of Scientific Computing, 2013
The suitable basis functions for approximating periodic function are periodic, trigonometric functions. When the function is not periodic, a viable alternative is to consider polynomials as basis functions. In this paper we will point out the inadequacy of polynomial approximation and suggest to switch from powers of $x$ to powers of $\sin(px)$ where ...
openaire   +3 more sources

Trigonometric Polynomial Solutions of Bernoulli Trigonometric Polynomial Differential Equations

open access: yesMathematics, 2022
We consider real trigonometric polynomial Bernoulli equations of the form A(θ)y′=B1(θ)+Bn(θ)yn where n≥2, with A,B1,Bn being trigonometric polynomials of degree at most μ≥1 in variables θ and Bn(θ)≢0. We also consider trigonometric polynomials of the form A(θ)yn−1y′=B0(θ)+Bn(θ)yn where n≥2, being A,B0,Bn trigonometric polynomials of degree at most μ≥1 ...
openaire   +2 more sources

A Class of Sheffer Sequences of Some Complex Polynomials and Their Degenerate Types

open access: yesMathematics, 2019
We study some properties of Sheffer sequences for some special polynomials with complex Changhee and Daehee polynomials introducing their complex versions of the polynomials and splitting them into real and imaginary parts using trigonometric polynomial ...
Dojin Kim
doaj   +1 more source

Haar intervals for trigonometric polynomials

open access: yes, 1979
Intervals are specified on which generalized trigonometric polynomials satisfy the Haar ...
Van de Vel, H.
core   +1 more source

Remez Type Inequality for Trigonometric Polynomials on an Interval

open access: yes, 2021
In this study we give a Remez type inequality for trigonometric polynomials on an ...
Akturk, Mehmet Ali, Lukashov, Alexey
core   +1 more source

On an Energy-Dependent Quantum System with Solutions in Terms of a Class of Hypergeometric Para-Orthogonal Polynomials on the Unit Circle

open access: yesMathematics, 2020
We study an energy-dependent potential related to the Rosen–Morse potential. We give in closed-form the expression of a system of eigenfunctions of the Schrödinger operator in terms of a class of functions associated to a family of hypergeometric para ...
Jorge A. Borrego-Morell   +2 more
doaj   +1 more source

Backpropagation Through Soft Body: Investigating Information Processing in Brain–Body Coupling Systems

open access: yesAdvanced Robotics Research, EarlyView.
This study explores how information processing is distributed between brains and bodies through a codesign approach. Using the “backpropagation through soft body” framework, brain–body coupling agents are developed and analyzed across several tasks in which output is generated through the agents’ physical dynamics.
Hiroki Tomioka   +3 more
wiley   +1 more source

Cones of Hermitian matrices and trigonometric polynomials

open access: yes, 2011
This chapter studies cones in the real Hilbert spaces of Hermitian matrices and real valued trigonometric polynomials. Based on an approach using such cones and their duals, it establishes various extension results for positive semidefinite matrices and ...
Hugo J. Woerdeman, Mihály Bakonyi
core   +1 more source

FPGA-based implementation of chaotic oscillators by applying the numerical method based on trigonometric polynomials

open access: yesAIP Advances, 2018
Chaotic systems are integrated via numerical methods but the main challenge is determining the correct time-step. For instance, traditional numerical methods like Forward Euler (FE) and 4th-order Runge-Kutta (RK), have been applied to simulate and to ...
A. D. Pano-Azucena   +3 more
doaj   +1 more source

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