Results 81 to 90 of about 33,160 (194)

Variational-Wavelet Approach to RMS Envelope Equations

open access: yes, 2000
We present applications of variational-wavelet approach to nonlinear (rational) rms envelope equations. We have the solution as a multiresolution (multiscales) expansion in the base of compactly supported wavelet basis.
Fedorova, Antonina N.   +1 more
core   +1 more source

Wavelets collocation methods for the numerical solution of elliptic BV problems

open access: yesApplied Mathematical Modelling, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aziz, Imran   +2 more
openaire   +2 more sources

Wavelet Scattering Regression of Quantum Chemical Energies

open access: yes, 2017
We introduce multiscale invariant dictionaries to estimate quantum chemical energies of organic molecules, from training databases. Molecular energies are invariant to isometric atomic displacements, and are Lipschitz continuous to molecular deformations.
Hirn, Matthew   +2 more
core   +1 more source

Generalized Haar wavelet operational matrix method for solving hyperbolic heat conduction in thin surface layers

open access: yesResults in Physics, 2018
It is remarkably known that one of the difficulties encountered in a numerical method for hyperbolic heat conduction equation is the numerical oscillation within the vicinity of jump discontinuities at the wave front.
Suazlan Mt Aznam, M.S.H. Chowdhury
doaj   +1 more source

Almost diagonal matrices and Besov-type spaces based on wavelet expansions [PDF]

open access: yes, 2014
This paper is concerned with problems in the context of the theoretical foundation of adaptive (wavelet) algorithms for the numerical treatment of operator equations.
Weimar, Markus
core   +1 more source

A numerical study on fractional order financial system with chaotic and Lyapunov stability analysis

open access: yesResults in Physics
In the last few decades, academic research has focused more on financial problems and poverty levels. These are among the two major challenges of the modern world today. To understand the challenge of financial crisis and poverty in societies. This paper
Khushbu Agrawal   +3 more
doaj   +1 more source

The Chebyshev Wavelet Method for Numerical Solutions of A Fractional Oscillator

open access: yesInternational Journal of Applied Mathematical Research, 2012
Wavelet transform or wavelet analysis has been recently developed as a mathematical tool for many problems. This paper is concerned with the wavelet numerical method for solving partial differential equations (PDE’s). The method is based on discrete wavelet transform, using Chebyshev Wavelet Method (CWM) which can be used for solving fractional ...
E. Hesameddini   +2 more
openaire   +2 more sources

The Analysis of Curved Beam Using B-Spline Wavelet on Interval Finite Element Method

open access: yesShock and Vibration, 2014
A B-spline wavelet on interval (BSWI) finite element is developed for curved beams, and the static and free vibration behaviors of curved beam (arch) are investigated in this paper.
Zhibo Yang   +4 more
doaj   +1 more source

Two reliable computational methods pertaining to steady state substrate concentration of an immobilized enzyme system

open access: yesAlexandria Engineering Journal, 2018
A mathematical model of an immobilized enzyme system with Michaelis-Menten mechanism for an irreversible reaction is discussed. The model is developed on the basis of diffusion equations containing a nonlinear term related to Michaelis-Menten (M-M ...
M. Salai Mathi Selvi   +3 more
doaj   +1 more source

Fast Frequency Estimation by Zero Crossings of Differential Spline Wavelet Transform

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
Zero crossings or extrema of a wavelet transform constitute important signatures for signal analysis with the advantage of great simplicity. In this paper, we introduce a fast frequency-estimation method based on zero-crossing counting in the transform ...
Chen Jie   +3 more
doaj   +1 more source

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