Results 11 to 20 of about 294,681 (298)

On bases from cosines in Lebesgue spaces with variable summability index

open access: yesJournal of Inequalities and Applications, 2016
In this paper the perturbed system of cosines is considered. Under certain conditions on the summability index p ( ⋅ ) $p (\cdot )$ and perturbation, the basicity of this system in Lebesgue spaces L p ( ⋅ ) ( 0 , π ) $L_{p (\cdot )} (0,\pi )$ with ...
Togrul Muradov, Chingiz Hashimov
doaj   +1 more source

Harmonic Morphisms Projecting Harmonic Functions to Harmonic Functions [PDF]

open access: yesAbstract and Applied Analysis, 2012
For Riemannian manifolds M and N, admitting a submersion ϕ with compact fibres, we introduce the projection of a function via its decomposition into horizontal and vertical components. By comparing the Laplacians on M and N, we determine conditions under which a harmonic function on U = ϕ−1(V) ⊂ M projects down, via its horizontal component, to a ...
openaire   +4 more sources

Some Properties of Certain Multivalent Harmonic Functions

open access: yesMathematics, 2023
In this paper, various features of a new class of normalized multivalent harmonic functions in the open unit disk are analyzed, including bounds on coefficients, growth estimations, starlikeness and convexity radii.
Georgia Irina Oros   +2 more
doaj   +1 more source

Multi-Objective Artificial Bee Colony Algorithm with Minimum Manhattan Distance for Passive Power Filter Optimization Problems

open access: yesMathematics, 2021
Passive power filters (PPFs) are most effective in mitigating harmonic pollution from power systems; however, the design of PPFs involves several objectives, which makes them a complex multiple-objective optimization problem. This study proposes a method
Nien-Che Yang   +2 more
doaj   +1 more source

Bases of exponents with a piecewise linear phase in generalized weighted Lebesgue space

open access: yesJournal of Inequalities and Applications, 2016
The perturbed system of exponents with a piecewise linear phase, consisting of eigenfunctions of a discontinuous differential operator, is considered in this work.
Tofig Najafov   +2 more
doaj   +1 more source

A unified representation of some starlike and convex harmonic functions with negative coefficients [PDF]

open access: yesOpuscula Mathematica, 2013
In this paper we introduce a unified representation of starlike and convex harmonic functions with negative coefficients, related to uniformly starlike and uniformly convex analytic functions.
R. M. El-Ashwah   +3 more
doaj   +1 more source

Simulation of Onset of the Capillary Surface Wave in the Ultrasonic Atomizer

open access: yesMicromachines, 2021
The novel drug delivery system refers to the formulations and technologies for transporting a pharmaceutical compound in the body as it is needed to safely achieve its desired therapeutic effects.
Yu-Lin Song   +3 more
doaj   +1 more source

Quality Assessment of HDR/WCG Images Using HDR Uniform Color Spaces

open access: yesJournal of Imaging, 2019
High Dynamic Range (HDR) and Wide Color Gamut (WCG) screens are able to render brighter and darker pixels with more vivid colors than ever. To assess the quality of images and videos displayed on these screens, new quality assessment metrics adapted to ...
Maxime Rousselot   +3 more
doaj   +1 more source

A Review: Recent Progress in the Design and Development of Nonlinear Radars

open access: yesRemote Sensing, 2021
This paper presents an extensive review of nonlinear response-based radar systems. Nonlinear radars are generally used for clutter suppression purposes. These radars detect the nonlinear response generated by diodes and transistors are used as a tag for ...
Ashish Mishra, Changzhi Li
doaj   +1 more source

Control of PMSM Drive Using Lookup Table Based Compensated Duty Ratio Optimized Direct Torque Control (DTC)

open access: yesIEEE Access, 2023
There are several ways to reduce the ripple magnitude for direct torque-controlled permanent magnet synchronous motor (PMSM) drives. In this work, the compensated duty ratio optimized direct torque control (DDTC-TC) method was proposed to reduce the ...
Berhanu Deggefa Lemma   +1 more
doaj   +1 more source

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