Results 41 to 50 of about 1,315 (192)

Linear barycentric rational collocation method for solving biharmonic equation

open access: yesDemonstratio Mathematica, 2022
Two-dimensional biharmonic boundary-value problems are considered by the linear barycentric rational collocation method, and the unknown function is approximated by the barycentric rational polynomial.
Li Jin
doaj   +1 more source

Node Local Similarity Based Two-stage Density Peaks Algorithm for Overlapping Community Detection [PDF]

open access: yesJisuanji kexue, 2022
In order to detect overlapping community structures in complex networks,the idea of density peaks clustering algorithm is introduced.However,applying the density peaks clustering algorithm to community detection still has problems such as how to measure ...
DUAN Xiao-hu, CAO Fu-yuan
doaj   +1 more source

Chebyshev pseudo-spectral method for optimal control problem of Burgers’ equation [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2019
In this study, an indirect method is proposed based on the Chebyshev pseudo-spectral method for solving optimal control problems governed by Burgers’ equation.
F. Mohammadizadeh   +2 more
doaj   +1 more source

The theorem about the transformer excitation current waveform mapping into the dynamic hysteresis loop branch for the sinusoidal magnetic flux case [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2015
This paper analyses aspects of the approximation theory application on the certain subsets of the measured samples of the transformer excitation current and the sinusoidal magnetic flux.
Petrović Nenad   +2 more
doaj   +1 more source

Topological and geometric signatures of brain network dynamics in Alzheimer's disease. [PDF]

open access: yesAlzheimers Dement
Abstract INTRODUCTION This study explores magnetic resonance imaging (MRI) as a promising non‐invasive approach to monitor Alzheimer's disease (AD) and related dementias. We investigate whether dynamic functional connectivity (dFC), which captures time‐varying neural interactions, can reveal sex‐specific brain network disruptions in AD that ...
Yi L   +4 more
europepmc   +2 more sources

Three-dimensional path planning of unmanned aerial vehicle based on an improved D* algorithm

open access: yesXi'an Gongcheng Daxue xuebao, 2023
An improved D* algorithm was proposed to solve the problems of low efficiency and complex inflection points in three-dimensional path autonomous planning of unmanned aerial vehicle using traditional D* algorithm.
WANG Xiaoshuai, ZHU Qixin, ZHU Yonghong
doaj   +1 more source

Bernstein basis functions based algorithm for solving system of third order initial value problems

open access: yesAlexandria Engineering Journal, 2021
For obtaining numerical solutions of the system of ordinary differential equations (ODEs) of third order, a new numerical technique is proposed by using operational matrices of Bernstein polynomials.
Rida Malik   +6 more
doaj   +1 more source

Parametrisation for boundary value problems with transcendental non-linearities using polynomial interpolation

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
A constructive technique of analysis involving parametrisation and polynomial interpolation is suggested for general non-local problems for ordinary differential systems with locally Lipschitzian transcendental non-linearities.
András Rontó   +2 more
doaj   +1 more source

A generalization of Hermite interpolation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
We introduce a new interpolation at Chebyshev nodes.
Xie-Hua Sun, Tingfan Xie
doaj   +1 more source

A collocation method to the solution of nonlinear fredholm-hammerstein integral and integro-differential equation [PDF]

open access: yesJournal of Hyperstructures, 2013
This paper presents a computational technique for the solution of the nonlinear Fredholm-Hammerstein integral and integrodifferential equations. A hybrid of block-pulse functions and the second kind Chebyshev polynomials (hereafter called as HBC) is used
F. Mirzaee, Elham Hadadiyan
doaj   +1 more source

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