Results 21 to 30 of about 49,679 (263)

A HODIE finite difference scheme for pricing American options

open access: yesAdvances in Difference Equations, 2019
In this paper, we introduce a new numerical method for pricing American-style options, which has long been considered as a very challenging problem in financial engineering.
Zhongdi Cen, Wenting Chen
doaj   +1 more source

Finite‐difference scheme for one problem of nonlinear optics

open access: yesMathematical Modelling and Analysis, 2008
We consider a mathematical model, which describes Q‐switching process. The finite difference scheme is developed for approximation of the given system of nonlinear PDEs.
Ingrida Laukaityte, Raimondas Čiegis
doaj   +1 more source

Deep FDM: Enhanced finite difference methods by deep learning

open access: yesFranklin Open, 2023
In this work, we propose a new idea to improve numerical methods for solving partial differential equations (PDEs) through a deep learning approach.
Tatiana Kossaczká   +2 more
doaj   +1 more source

A Mixed Finite Differences Scheme for Gradient Approximation [PDF]

open access: yesJournal of Optimization Theory and Applications, 2022
AbstractIn this paper, we focus on the linear functionals defining an approximate version of the gradient of a function. These functionals are often used when dealing with optimization problems where the computation of the gradient of the objective function is costly or the objective function values are affected by some noise.
Marco Boresta   +3 more
openaire   +2 more sources

Finite difference scheme for multi-term variable-order fractional diffusion equation

open access: yesAdvances in Difference Equations, 2018
In this paper, we consider a multi-term variable-order fractional diffusion equation on a finite domain, which involves the Caputo variable-order time fractional derivative of order α(x,t)∈(0,1) $\alpha(x,t) \in(0,1) $ and the Riesz variable-order space ...
Tao Xu   +3 more
doaj   +1 more source

Finite Difference Schemes for Differential Equations [PDF]

open access: yesMathematics of Computation, 1964
(1) ~~~~~L = d p(x) d + q(x) and the related variational problem for the functional b ~~~~~~~~~~b (2) Q(u) = ] (pu'2 + qu') dx - 2 fu dx viz., min Q(u) uE Q where the class Q consists of smooth functions u(x) satisfying u(a) = u(b) = 0. Following Ritz, the solution of the variational problem may be discussed within the framework of the direct methods ...
openaire   +2 more sources

A robust method of lines solution for singularly perturbed delay parabolic problem

open access: yesAlexandria Engineering Journal, 2020
A numerical method is proposed to solve a non-autonomous singularly perturbed parabolic differential equation with a time delay. The solution is obtained by a step by step discretisation process. First the spatial derivatives are discretised via a fitted
Nana Adjoah Mbroh   +2 more
doaj   +1 more source

Implicit Finite-Difference Scheme for a Duffing Oscillator with a Derivative of Variable Fractional Order of the Riemann-Liouville Type

open access: yesMathematics, 2023
The article considers an implicit finite-difference scheme for the Duffing equation with a derivative of a fractional variable order of the Riemann–Liouville type.
Valentine Aleksandrovich Kim   +2 more
doaj   +1 more source

Modification of the Lagrange Interpolating Polynomial Scheme for Using with the Finite Difference Method

open access: yesMATEC Web of Conferences, 2017
Modification of the Lagrange interpolating polynomial (LIP) scheme for using with the finite difference method is proposed. Merits of the modified LIP scheme used with the finite difference method for problem solving are facile to discretize equations ...
Prasopchingchana Uthai
doaj   +1 more source

A novel explicit finite difference scheme for partial differential equations

open access: yesMathematical Modelling and Analysis, 1999
Most explicit finite difference schemes have very stringent stability criterion. In 1982, Charlie Dey [1] developed a novel method and solved several partial differential equations representing models of fluid flow.
S. K. Dey
doaj   +1 more source

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