Results 11 to 20 of about 11,667 (313)

Appell Type Changhee Polynomials Operational Matrix of Fractional Derivatives and its Applications

open access: yesEurasian Journal of Science and Engineering, 2022
In this paper, a fractional order differential equation (FDEs), will be solved numerically through a new approximative technique based on Appell type Changhee polynomials.
Abdulnasir Isah
doaj   +1 more source

Reduced Collocation Methods: Reduced Basis Methods in the Collocation Framework [PDF]

open access: yesJournal of Scientific Computing, 2012
In this paper, we present the first reduced basis method well-suited for the collocation framework. Two fundamentally different algorithms are presented: the so-called Least Squares Reduced Collocation Method (LSRCM) and Empirical Reduced Collocation Method (ERCM). This work provides a reduced basis strategy to practitioners who {prefer} a collocation,
Chen, Yanlai, Gottlieb, Sigal
openaire   +3 more sources

Spectral collocation methods [PDF]

open access: yesApplied Numerical Mathematics, 1989
This is a survey article on the application of spectral collocation methods to the solution of partial differential equations. For the most part, the basis functions used are either trigonometric or Chebyshev polynomials, although there is some discussion of Legendre polynomials.
Hussaini, M. Y.   +2 more
openaire   +2 more sources

Non‐Stationary Probabilistic Tsunami Hazard Assessments Compounding Tides and Sea Level Rise

open access: yesEarth's Future, 2022
Tides are often the largest source of sea levels fluctuations. Two new probabilistic tsunami hazard assessments (PTHA) methods are proposed to combine the tidal phase uncertainty at the moment of tsunami occurrence with other sources of uncertainty.
Ignacio Sepúlveda   +4 more
doaj   +1 more source

Multivalue Collocation Methods for Ordinary and Fractional Differential Equations

open access: yesMathematics, 2022
The present paper illustrates some classes of multivalue methods for the numerical solution of ordinary and fractional differential equations. In particular, it focuses on two-step and mixed collocation methods, Nordsieck GLM collocation methods for ...
Angelamaria Cardone   +3 more
doaj   +1 more source

Collocation Methods for Volterra Integral and Integro-Differential Equations: A Review

open access: yesAxioms, 2018
We present a collection of recent results on the numerical approximation of Volterra integral equations and integro-differential equations by means of collocation type methods, which are able to provide better balances between accuracy and stability ...
Angelamaria Cardone   +3 more
doaj   +1 more source

Approximations to linear Klein–Gordon Equations using Haar wavelet

open access: yesAin Shams Engineering Journal, 2021
In this research article, two Haar wavelet collocation methods (HWCMs) (namely one dimensional HWCM and two dimensional HWCM) are adapted to approximate linear homogeneous and linear non-homogeneous Klein–Gordon equations.
Sana Ikram   +2 more
doaj   +1 more source

Dynamic Optimization Using Local Collocation Methods and Improved Multiresolution Technique

open access: yesApplied Sciences, 2018
Dynamic optimization has wide applications in scientific and industrial researches. Multiresolution techniques provide an efficient way to solve dynamic optimization problems but have some disadvantages. An improved multiresolution technique is developed
Jisong Zhao, Teng Shang
doaj   +1 more source

A High-Efficiency Spectral Method for Two-Dimensional Ocean Acoustic Propagation Calculations

open access: yesEntropy, 2021
The accuracy and efficiency of sound field calculations highly concern issues of hydroacoustics. Recently, one-dimensional spectral methods have shown high-precision characteristics when solving the sound field but can solve only simplified models of ...
Xian Ma   +5 more
doaj   +1 more source

Approximate Solutions of Nonlinear Boundary Value Problems by Collocation Methods Compared to Newer Methods

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2023
A large variety of new methods are being developed for fast and efficient solutions of nonlinear boundary value problems. Some of these methods are, Adomian decomposition (ADM), differential transform (DTM), least squares vector machines (LSSVMM), and ...
Hasan Ömür Özer   +3 more
doaj   +1 more source

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