Results 11 to 20 of about 641 (195)

Numerical Solution of Nonlinear Backward Stochastic Volterra Integral Equations

open access: yesAxioms, 2023
This work uses the collocation approximation method to solve a specific type of backward stochastic Volterra integral equations (BSVIEs). Using Newton’s method, BSVIEs can be solved using block pulse functions and the corresponding stochastic operational
Mahvish Samar   +2 more
doaj   +1 more source

Numerical solution of nonlinear stochastic Itô–Volterra integral equation by stochastic modified hat function operational matrices

open access: yesResults in Applied Mathematics, 2022
In this article, we present a numerical method to approximate for solving nonlinear Stochastic Itô–Volterra integral equations. This method is based on the modification of hat functions (MHFs) that introduce an operational matrix of integration.
Fatemeh Sharafi, Behrooz Basirat
doaj   +1 more source

A Study of The Stochastic Burgers’ Equation Using The Dynamical Orthogonal Method

open access: yesAxioms, 2023
In the current work, the stochastic Burgers’ equation is studied using the Dynamically Orthogonal (DO) method. The DO presents a low-dimensional representation for the stochastic fields. Unlike many other methods, it has a time-dependent property on both
Mohamed El-Beltagy   +2 more
doaj   +1 more source

An Adaptive WENO Collocation Method for Differential Equations with Random Coefficients

open access: yesMathematics, 2016
The stochastic collocation method for solving differential equations with random inputs has gained lots of popularity in many applications, since such a scheme exhibits exponential convergence with smooth solutions in the random space.
Wei Guo   +3 more
doaj   +1 more source

Stochastic Optimal Power Flow for Power Systems Considering Wind Farms Based on the Stochastic Collocation Method

open access: yesIEEE Access, 2022
The investigation of stochastic optimal power flow (SOPF) is to seek the optimal solution of static stability constrained optimal power flow considering the uncertainty of parameters in power systems. To solve the problem, this paper proposes an approach
Bingqing Xia   +5 more
doaj   +1 more source

Stochastic Collocation Methods via $\ell_1$ Minimization Using Randomized Quadratures

open access: yesSIAM Journal on Scientific Computing, 2017
25 pages, 8 ...
Guo, Ling   +3 more
openaire   +2 more sources

Numerical analysis of stochastic SIR model by Legendre spectral collocation method

open access: yesAdvances in Mechanical Engineering, 2019
This article represents Legendre spectral collocation method based on Legendre polynomials to solve a stochastic Susceptible, infected, Recovered (SIR) model.
Sami Ullah Khan, Ishtiaq Ali
doaj   +1 more source

Cylindrical Shell with Junctions: Uncertainty Quantification of Free Vibration and Frequency Response Analysis

open access: yesShock and Vibration, 2018
Numerical simulation of thin solids remains one of the challenges in computational mechanics. The 3D elasticity problems of shells of revolution are dimensionally reduced in different ways depending on the symmetries of the configurations resulting in ...
Harri Hakula   +2 more
doaj   +1 more source

Application of uncertainty design optimization based on polynomial chaos expansions and maximum entropy method in ship design

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectivesThe key to uncertainty design optimization (UDO) is uncertainty quantification (UQ), but the traditionally used Monte Carlo (MC) method can be time-consuming and computationally expensive.
Xiao WEI, Heng LI, Chenran HUANG
doaj   +1 more source

Option valuation in markets with finite liquidity under fractional CEV assets [PDF]

open access: yesMathematics and Modeling in Finance, 2022
‎The aim of this paper is to numerically price the European double barrier option by calculating the governing fractional Black-Scholes equation in illiquid markets‎.
Azadeh Ghasemifard   +2 more
doaj   +1 more source

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