Results 11 to 20 of about 442,060 (253)

Analytical and Numerical Solutions for a Kind of High-Dimensional Fractional Order Equation

open access: yesFractal and Fractional, 2022
In this paper, a (4+1)-dimensional nonlinear integrable Fokas equation is studied. It is rarely studied because the order of the highest-order derivative term of this equation is higher than the common generalized (4+1)-dimensional Fokas equation ...
Chang-Na Lu, Cun-Juan Hou, Ning Zhang
doaj   +1 more source

Initial-boundary value problem for the equation of forced vibrations of a cantilever beam [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
In this paper, an initial-boundary value problem for the equation of forced vibrations of a cantilever beam is studied. Such a linear differential equation of the fourth order describes bending transverse vibrations of a homogeneous beam under the action
Kamil B. Sabitov, Oksana V. Fadeeva
doaj   +1 more source

Spectral methods in the presence of discontinuities [PDF]

open access: yesJournal of Computational Physics, 2019
20 pages, 18 ...
Joanna Piotrowska   +2 more
openaire   +5 more sources

Spectral discretization of the time-dependent Navier-Stokes problem with mixed boundary conditions

open access: yesAdvances in Nonlinear Analysis, 2022
In this work, we handle a time-dependent Navier-Stokes problem in dimension three with a mixed boundary conditions. The variational formulation is written considering three independent unknowns: vorticity, velocity, and pressure.
Abdelwahed Mohamed, Chorfi Nejmeddine
doaj   +1 more source

Spectral Collocation Technique for Solving Two-Dimensional Multi-Term Time Fractional Viscoelastic Non-Newtonian Fluid Model

open access: yesMathematics, 2023
Applications of non-Newtonian fluids have been widespread across industries, accompanied by theoretical developments in engineering and mathematics. This paper studies a two-dimensional multi-term time fractional viscoelastic non-Newtonian fluid model by
Mohammed M. Al-Shomrani   +2 more
doaj   +1 more source

A Sparse Spectral Method on Triangles [PDF]

open access: yesSIAM Journal on Scientific Computing, 2019
In this paper, we demonstrate that many of the computational tools for univariate orthogonal polynomials have analogues for a family of bivariate orthogonal polynomials on the triangle, including Clenshaw's algorithm and sparse differentiation operators.
Sheehan Olver   +2 more
openaire   +5 more sources

The Dirichlet problem for a three-dimensional equation of mixed type with three singular coefficients

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
We study the Dirichlet problem in a parallelepiped for a three-dimensional equation of mixed type with three singular coefficients. Separation of variables with Fourier series and spectral analysis are used to investigate this problem.
Akhmadjon K Urinov, Kamoliddin T Karimov
doaj   +1 more source

Nonlinear consolidation model for stratified soils with vertical drains based on spectral method

open access: yesYantu gongcheng xuebao, 2021
Many soft soil foundations with vertical drains are stratified, and the permeability and compressibility of soils change nonlinearly during the consolidation process.
XU Bin-hua 1, 2, HE Ning 1, 3, ZHOU Yan-zhang 1, ZHANG Zhong-liu 1
doaj   +1 more source

On the Compressive Spectral Method

open access: yesMultiscale Modeling & Simulation, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alan Mackey   +2 more
openaire   +4 more sources

On the theory of the known inverse problems for the heat transfer equation

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2019
The inverse problems for finding the initial condition and the right-hand side were studied for the heat transfer equation. A solution of the initial boundary value problem for the inhomogeneous heat transfer equation with sufficient conditions for the ...
K.B. Sabitov, A.R. Zaynullov
doaj   +1 more source

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