Results 21 to 30 of about 44,524 (180)

To Solution of Contact Problem for Rectangular Plate on Elastic Half-Space

open access: yesНаука и техника, 2020
Until the present time there is no exact solution to the contact problem for a rectangular plate on an elastic base with distribution properties. Practical analogues of this design are slab foundations widely used in construction.
S. V. Bosakov
doaj   +1 more source

Numerical estimation of the fractional advection–dispersion equation under the modified Atangana–Baleanu–Caputo derivative

open access: yesResults in Physics, 2023
The transport of contaminants is a crucial environmental issue, and accurate modeling of this phenomenon is vital for developing effective strategies for its management.
Mohammad Partohaghighi   +3 more
doaj   +1 more source

DETERMINING OF CONTINUOUS DELAY IN A SPECTRAL PROBLEM FOR CHEBYSHEV OPERATOR OF THE FIRST KIND

open access: yesBulletin of the South Ural State University series "Mathematics. Mechanics. Physics", 2022
A perturbed singular ordinary differential Chebyshev operator of the first kind with continuous delay is considered in this paper. For an arbitrary numerical sequence that does not differ much from eigenvalues sequence of an unperturbed operator, a problem is set to find the perturbation operator containing a continuous delay.
openaire   +1 more source

The Mixed Boundary Value Problems and Chebyshev Collocation Method for Caputo-Type Fractional Ordinary Differential Equations

open access: yesFractal and Fractional, 2022
The boundary value problem (BVP) for the varying coefficient linear Caputo-type fractional differential equation subject to the mixed boundary conditions on the interval 0≤x≤1 was considered.
Jun-Sheng Duan, Li-Xia Jing, Ming Li
doaj   +1 more source

First and Second Chebyshev Wavelets Spectral Method for Solving Variational Problems

open access: yesJournal of the College of Basic Education, 2023
في هذه الورقة ، تم تقديم مصفوفات تشيبيشيف العملياتية للتكامل (الأول والثاني) للحلول التقريبية للمشكلات المتغيرة.الفكرة الرئيسية وراء هذا النهج هي أنه اختصر مثل هذه المشاكل إلى مشاكل حل أنظمة المعادلات الجزائرية باستخدام الطريقة الطيفية. هناك حاجة إلى عدد قليل فقط من موجات تشيبيشيف للحصول على نتائج مرضية. يتم توضيح تطبيقات الطريقة المقترحة من خلال أمثلة
openaire   +1 more source

Parallel Self-Consistent-Field Calculations via Chebyshev-Filtered Subspace Acceleration [PDF]

open access: yes, 2006
Solving the Kohn-Sham eigenvalue problem constitutes the most computationally expensive part in self-consistent density functional theory (DFT) calculations.
B. Fornberg   +10 more
core   +1 more source

Dynamic multi‐objective optimisation of complex networks based on evolutionary computation

open access: yesIET Networks, EarlyView., 2022
Abstract As the problems concerning the number of information to be optimised is increasing, the optimisation level is getting higher, the target information is more diversified, and the algorithms are becoming more complex; the traditional algorithms such as particle swarm and differential evolution are far from being able to deal with this situation ...
Linfeng Huang
wiley   +1 more source

A Numerical Scheme Based on the Chebyshev Functions to Find Approximate Solutions of the Coupled Nonlinear Sine-Gordon Equations with Fractional Variable Orders

open access: yesAbstract and Applied Analysis, 2021
In this article, a numerical method based on the shifted Chebyshev functions for the numerical approximation of the coupled nonlinear variable-order fractional sine-Gordon equations is shown.
MohammadHossein Derakhshan
doaj   +1 more source

Interval Uncertainty Quantification for the Dynamics of Multibody Systems Combing Bivariate Chebyshev Polynomials with Local Mean Decomposition

open access: yesMathematics, 2022
Interval quantification for multibody systems can provide an accurate dynamic prediction and a robust reliability design. In order to achieve a robust numerical model, multiple interval uncertain parameters should be considered in the uncertainty ...
Xin Jiang, Zhengfeng Bai
doaj   +1 more source

Solving Special Case of Inverse Sturm-Liouville Problem with Aftereffect by using Chebyshev Polynomials

open access: yesپژوهش‌های ریاضی, 2021
Introduction In this study, we consider the differential equation with aftereffect under the separated boundary conditions on a finite interval. In fact, we consider the Sturm-Liouville operator disorganized by a Volterra integral operator. We obtain the
Shahrbanoo Akbarpoor   +2 more
doaj  

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