Results 91 to 100 of about 11,152,508 (166)

Haar Wavelet Operational Matrix Method for Solving Fractional Partial Differential Equations

, 2012
In this paper, Haar wavelet operational matrix method is proposed to solve a class of fractional partial differential equations. We derive the Haar wavelet operational matrix of fractional order integration. Meanwhile, the Haar wavelet operational matrix
Yiming Chen, Mingxu Yi
core   +1 more source

Wavelet Multiresolution Analysis of High-Frequency Asian FX Rates, Summer 1997 [PDF]

FX pricing processes are nonstationary and their frequency characteristics are time-dependent. Most do not conform to geometric Brownian motion, since they exhibit a scaling law with a Hurst exponent between zero and 0.5 and fractal dimensions between 1 ...
CORNELIS A. LOS, JEYANTHI KARUPPIAH
core  

Numerical Solution of Nonlinear Volterra-Fredholm Integral Equations Using Haar Wavelet Collocation Method

, 2017
In this paper, we present a numerical solution of nonlinear Volterra-Fredholm integral equations using Haar wavelet collocation method. Properties of Haar wavelet and its operational matrices are utilized to convert the integral equation into a system of
R.A. Mundewadi, S.C. Shiralashetti
core   +1 more source

An Efficient Approach for Mixed Neutral Delay Differential Equations

Computation
In this paper, neutral delay differential equations, which contain constant and proportional terms, termed mixed neutral delay differential equations, are solved numerically.
Rupal Aggarwal, Giriraj Methi, Ravi P. Agarwal, Basharat Hussain   +3 more
doaj   +1 more source

Haar Wavelet Method for Series Expansion of Fractional Wiener Integral

پژوهش‌های ریاضی, 2019
Introduction The stochastic calculus plays an important role in the study of stochastic integral equations and stochastic differential equations. The fractional Brownian motion has many applications in different branches of sciences such as economics ...
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doaj  

APPROXIMATE SOLUTION OF CONVECTION-DIFFUSION EQUATIONS USING A HAAR WAVELET METHOD

, 2015
We present here a Haar wavelet method for numerical solution of convection-diffusion equations.  Haar wavelet is a powerful mathematical tool used to solve various type of partial differential equations.
Singh, Inderdeep, Kumar, Sheo
core  

Novel method to determine bedrock from a single sensor based seismic reflection signal using Haar wavelet transform

Discover Geoscience
The determination of bedrock depth is crucial across various earth sciences and related fields. Geophysical techniques, notably the continuous wavelet transform, are increasingly employed to map subsurface bedrock structures.
N. E. Ramesh, S. Pushpa Mala
doaj   +1 more source

A study on solution of differential equations using Haar wavelet collocation method [PDF]

, 2012
In this contest of study, problems regarding differential equations are studied when the differential equations: ordinary or partial differential equations have no solution in direct method or it is very difficult to find the required integral.When this ...
Sahoo, Bishnupriya
core  

Solving Poisson’s Equations with Fractional Order Using Haar Wavelet

, 2017
The algebraic structure of the linear system appears in solving fractional order Poisson’s equation by Haar wavelet collocation approach is considered. The fractional derivative is described in the Caputo sense. Comparison with the classical integer case
The British University in Egypt, Ain Shams University   +1 more
core  

WaveUNet+: Preserving Root System Architecture Integrity in In Situ Root Segmentation via a Unified Spectral-Spatial Framework. [PDF]

Plants (Basel)
Wang L, Zhang M, Liu X, Yu Q, Zhu L, Liu L, Wang N.   +6 more
europepmc   +1 more source