Penalty method for indifference pricing of American option in a liquidity switching market

TB Gyulov, MN Koleva - Applied Numerical Mathematics, 2022 - Elsevier
In this paper we develop a numerical method for pricing American options under regime-
switching model, whose solutions are option buyer indifference prices. The problem is …

Numerical approximation of convective Brinkman-Forchheimer flow with variable permeability

C Nwaigwe, J Oahimire, A Weli - Applied and Computational Mechanics, 2023 - kme.zcu.cz
This paper investigates the nonlinear dispersion of a pollutant in a non-isothermal
incompressible flow of a temperature-dependent viscosity fluid in a rectangular channel …

Monotone finite-difference schemes with second order approximation based on regularization approach for the dirichlet boundary problem of the gamma equation

TTH Hanh, DNH Thanh - IEEE Access, 2020 - ieeexplore.ieee.org
We investigate the initial boundary value problem for the Gamma equation transformed from
the nonlinear Black-Scholes equation for pricing option to a quasilinear parabolic equation …

Numerical solution of a time fractional parabolic system in fractured porous media

MN Koleva, LG Vulkov - AIP Conference Proceedings, 2023 - pubs.aip.org
We consider a coupled system of parabolic equations that describes flow in fractured porous
media with anomalous diffusion. Using a half-integer grid, the second and third boundary …

On the Nonstandard Maximum Principle and Its Application for Construction of Monotone Finite-Difference Schemes for Multidimensional Quasilinear Parabolic …

LM Hieu, NHN Xuan, DNH Thanh - Ukrainian Mathematical Journal, 2024 - Springer
We consider the difference maximum principle with input data of variable sign and its
application to the investigation of the monotonicity and convergence of finite-difference …

On the nonstandard maximum principle and its application for construction of monotone finite-difference schemes for multidimensional quasilinear parabolic equations

NHN Xuan, DNH Thanh - Ukrains' kyi Matematychnyi Zhurnal, 2024 - umj.imath.kiev.ua
Keywords: Maximum principle, two-side estimates, monotone method, finite-difference
scheme, multidimensional quasilinear parabolic equation, convergence, weakly couple …

Hermite Interpolation Approach to High-Order Approximation of Heat Equations

C Nwaigwe, A Weli - European Journal of Mathematics and Statistics, 2023 - ej-math.org
It is usually desirable to approximate the solution of mathematical problems with high-order
of accuracy and preferably using compact stencils. This work presents an approach for …

[PDF][PDF] Modelling the Impacts of Shape and Volume Fraction of Nanoparticles on Water Based Nanofluid Flow with Variable Thermophysical Properties

C Nwaigwe, A Weli, F Mebarek-Oudina - International Journal of …, 2022 - ajol.info
In some applications, nano-sized particles are used to enhance heat transfer in thermal
energy systems. Two important practical concerns are the shape of the nanoparticles and …

[PDF][PDF] A New Second-Order Solver for Nonlinear Convection-Diffusion-Reaction Equations

C Nwaigwe - researchgate.net
An unconditionally stable difference scheme is proposed for convectiondiffusion-reaction
equations (CDREs) with nonlinear coefficients and sources. A key requirement in addition to …

Compact scheme with two-sided estimates for nonlinear convection-diffusion-reaction equations

C Nwaigwe - Mathematics in Applied Sciences and Engineering, 2020 - ojs.lib.uwo.ca
It is desirable that a numerical method is high-order accurate, compact, efficient and able to
simulate purely convection problems. Most existing high-order methods for convection …