Results 41 to 50 of about 33,160 (194)

Coronal Mass Ejection Detection using Wavelets, Curvelets and Ridgelets: Applications for Space Weather Monitoring

open access: yes, 2010
Coronal mass ejections (CMEs) are large-scale eruptions of plasma and magnetic feld that can produce adverse space weather at Earth and other locations in the Heliosphere.
Aschwanden   +30 more
core   +1 more source

Valuation of boundary-linked assets [PDF]

open access: yes, 2004
This article studies the valuation of boundary-linked assets and their derivatives in continuous-time markets. Valuing boundary-linked assets requires the solution of a stochastic differential equation with boundary conditions, which, often, is not ...
Esteban-Bravo, Mercedes   +1 more
core   +1 more source

Wavelets and Fast Numerical Algorithms

open access: yes, 1993
Wavelet based algorithms in numerical analysis are similar to other transform methods in that vectors and operators are expanded into a basis and the computations take place in this new system of coordinates.
Beylkin, G.
core   +2 more sources

A Wavelet Collocation Method for the Numerical Solution of Partial Differential Equations

open access: yesApplied and Computational Harmonic Analysis, 1996
A wavelet collocation method for the numerical solution of partial differential equations is described. It is based on the Daubechie's compactly supported wavelets. Preconditioning techniques and the treatment of boundary conditions are discussed. Results are presented for several 1D and 2D model problems.
Bertoluzza, S., Naldi, G.
openaire   +2 more sources

On some wavelet solutions of singular differential equations arising in the modeling of chemical and biochemical phenomena

open access: yesAdvances in Difference Equations, 2020
This paper is concerned with the Lane–Emden boundary value problems arising in many real-life problems. Here, we discuss two numerical schemes based on Jacobi and Bernoulli wavelets for the solution of the governing equation of electrohydrodynamic flow ...
Mo Faheem, Arshad Khan, E. R. El-Zahar
doaj   +1 more source

Hermite wavelet based numerical method for the solution of two parameters singularly perturbed non-linear Benjamina-Bona-Mohany equation

open access: yesScientific African, 2021
In this paper, the Hermite wavelet based numerical method is developed for the solution of two parameters singularly perturbed non-linear Benjamina-Bona-Mohany partial differential equation.Present method is purely based on the time discretization of ...
S.C. Shiralashetti, S.I. Hanaji
doaj   +1 more source

Homotopy Analysis And Legendre Multi-Wavelets Methods For Solving Integral Equations [PDF]

open access: yes, 2009
Due to the ability of function representation, hybrid functions and wavelets have a special position in research. In this thesis, we state elementary definitions, then we introduce hybrid functions and some wavelets such as Haar, Daubechies, Cheby ...
Vahdati, Saeed
core  

Review of modern numerical methods for a simple vanilla option pricing problem [PDF]

open access: yes, 2018
Option pricing is a very attractive issue of financial engineering and optimization. The problem of determining the fair price of an option arises from the assumptions made under a given financial market model.
Holčapek, Michal   +4 more
core   +1 more source

Computing continuous-time growth models with boundary conditions via wavelets [PDF]

open access: yes, 2004
This paper presents an algorithm for approximating the solution of deterministic/stochastic continuous-time growth models based on the Euler's equation and the transversality conditions.
Esteban-Bravo, Mercedes   +1 more
core   +2 more sources

A Multiscale Guide to Brownian Motion

open access: yes, 2015
We revise the Levy's construction of Brownian motion as a simple though still rigorous approach to operate with various Gaussian processes. A Brownian path is explicitly constructed as a linear combination of wavelet-based "geometrical features" at ...
Beliaev, Dmitry   +2 more
core   +1 more source

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