Results 31 to 40 of about 4,172 (259)

A multiscale collocation method for fractional differential problems [PDF]

open access: yes, 2018
We introduce a multiscale collocation method to numerically solve differential problems involving both ordinary and fractional derivatives of high order.
Pezza, L., Pitolli, F.
core   +1 more source

The numerical solution of singular initial value problems using Chebyshev wavelet collocation method

open access: yesAin Shams Engineering Journal, 2018
Wavelet analysis is a recently developed mathematical tool for many problems. In this paper, an efficient and new numerical method is proposed for the numerical solution of singular initial value problems, which is based on collocation points with ...
S.C. Shiralashetti, A.B. Deshi
doaj   +1 more source

A fractional spline collocation method for the fractional order logistic equation [PDF]

open access: yes, 2017
We construct a collocation method based on the fractional B-splines to solve a nonlinear differential problem that involves fractional derivative, i.e. the fractional order logistic equation.
Pezza, L., Pitolli, F.
core   +1 more source

Chebyshev wavelet collocation method for Ginzburg-Landau equation

open access: yesThermal Science, 2019
The main aim of this paper is to investigate the efficient Chebyshev wavelet collocation method for Ginzburg-Landau equation. The basic idea of this method is to have the approximation of Chebyshev wavelet series of a non-linear PDE. We demonstrate how to use the method for the numerical solution of the Ginzburg-Landau equation with initial and ...
Bakir, Yasemin, Seçer, Aydın
openaire   +3 more sources

A New Efficient Method for the Numerical Solution of Linear Time-Dependent Partial Differential Equations

open access: yesAxioms, 2018
This paper presents a new efficient method for the numerical solution of a linear time-dependent partial differential equation. The proposed technique includes the collocation method with Legendre wavelets for spatial discretization and the three-step ...
Mina Torabi, Mohammad-Mehdi Hosseini
doaj   +1 more source

Adaptive wavelet collocation methods and wave propagation [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1995
An adaptive wavelet collocation method for the initial value boundary problem of nonlinear PDE’s is studied. The collocation method is based on a cubic spline wavelet decomposition for the Sobolev space H20(I), where I is a bounded interval. Based on a special ‘‘point-wise orthogonality’’ of the wavelet basis functions, a fast discrete wavelet ...
openaire   +1 more source

A fractional B-spline collocation method for the numerical solution of fractional predator-prey models [PDF]

open access: yes, 2018
We present a collocation method based on fractional B-splines for the solution of fractional differential problems. The key-idea is to use the space generated by the fractional B-splines, i.e., piecewise polynomials of noninteger degree, as approximating
Pitolli, Francesca
core   +1 more source

Wavelet multi-resolution approximation for multiobjective optimal control. [PDF]

open access: yesPLoS ONE, 2018
A new sequential method based on multi-resolution approximation is proposed for solving computationally expensive multi-objective optimization problems. A traditional strategy is to decompose a multi-objective optimization problem into a number of single-
Wen Zou   +3 more
doaj   +1 more source

Wavelet-Collocation Method of Solving Singular Integral Equation

open access: yesIndian Journal of Science and Technology, 2017
Objectives: This article describes one of the approaches to the approximate solution of the singular integral equation of the first kind with the Cauchy kernel on material axis interval, based on the approximation of the desired function by Chebyshev’s wavelets of the II-nd kind.
Liliya Emitovna Khairullina   +1 more
openaire   +1 more source

Orographic and convective gravity waves above the Alps and Andes mountains during GPS radio occultation events – a case study [PDF]

open access: yes, 2017
The significant distortions introduced in the measured atmospheric gravity wavelengths by soundings other than in vertical and horizontal directions, are discussed as a function of elevation angle of the sounding path and the gravity waves aspect ratio ...
Alexander, Pedro Manfredo   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy