Results 41 to 50 of about 163 (150)

Fast solution strategies for time-space fractional linear complementarity problems governing American options pricing

open access: yesDemonstratio Mathematica
Fractional derivatives are widely used in various fields to model the historical dependence or spatial globalization of the solutions because of their nonlocal properties.
Chen Xu   +3 more
doaj   +1 more source

LDG schemes with second order implicit time discretization for a fractional sub-diffusion equation

open access: yesResults in Applied Mathematics, 2019
In this paper, we propose new local discontinuous Galerkin (LDG) schemes for solving a time fractional sub-diffusion equation. The new LDG schemes is constructed rely on the splitting of time fractional derivative and space derivative.
Can Li, Xiaorui Sun, Fengqun Zhao
doaj   +1 more source

Existence and uniqueness results of solutions for a new class of parabolic varitional inequalities related with impulse control problem

open access: yesNonlinear Engineering
In this work, we establish novel existence and uniqueness results for parabolic quasi-variational inequalities (PQVIs) by developing a structured four-phase numerical framework.
Boulaaras Salah   +2 more
doaj   +1 more source

On the Two-phase Fractional Stefan Problem

open access: yesAdvanced Nonlinear Studies, 2020
The classical Stefan problem is one of the most studied free boundary problems of evolution type. Recently, there has been interest in treating the corresponding free boundary problem with nonlocal diffusion.
del Teso Félix   +2 more
doaj   +1 more source

Long time stability of a classical efficient scheme for two dimensional Navier-Stokes equations [PDF]

open access: yes, 2011
. We prove that a popular classical implicit-explicit scheme for the 2D incompressible Navier–Stokes equations that treats the viscous term implicitly while the nonlinear advection term explicitly is long time stable provided that the time step is ...
Wang, X   +14 more
core   +1 more source

Low Volatility Options and Numerical Diffusion of Finite Difference Schemes [PDF]

open access: yes, 2010
2000 Mathematics Subject Classification: 65M06, 65M12.In this paper we explore the numerical diffusion introduced by two nonstandard finite difference schemes applied to the Black-Scholes partial differential equation for pricing discontinuous payoff and
Milev, Mariyan, Tagliani, Aldo
core  

An adaptive mesh method for time dependent singularly perturbed differential-difference equations

open access: yesNonlinear Engineering, 2019
In this paper, a time dependent singularly perturbed differential-difference convection-diffusion equation is solved numerically by using an adaptive grid method. Similar boundary value problems arise in computational neuroscience in determination of the
Pramod Chakravarthy P., Kumar Kamalesh
doaj   +1 more source

High-order numerical methods with stability analysis for Caputo–Riesz fractional reaction-diffusion models in three dimensions

open access: yesDemonstratio Mathematica
In this paper, we propose and study a new ternary three-dimensional fractional reaction-diffusion model. The model combines Caputo fractional derivatives in time with Riesz fractional derivatives in space.
Kosari Saeed, Guan Hao
doaj   +1 more source

Convergent families of inertial manifolds for convergent approximations’, Numerical Algorithms 14

open access: yes, 1997
This paper shows that a sequence of (suitably uniform) inertial manifolds for a family of approximations converges to an inertial manifold for the limiting problem, without imposing any additional assumptions.
James C Robinson
core  

Convergence of numerical schemes for viscosity solutions to integro-differential degenerate parabolic problems arising in finance theory

open access: yes, 2004
Summary. We study the numerical approximation of viscosity solutions for integro-differential, possibly degenerate, parabolic problems. Similar models arise in option pricing, to generalize the celebrated Black–Scholes equation, when the processes which ...
Maya Briani   +2 more
core  

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