A tempered subdiffusive Black-Scholes model.
2021
In this paper we focus on the tempered subdiffusive Black-Scholes (tsB-S) model. The main part of our work consists of the finite difference (FD) method as a numerical approach to the option pricing in the considered model. We derive the governing fractional differential equation and the related weighted numerical scheme. The proposed method has $2-\alpha$ order of accuracy with respect to time where $\alpha\in(0,1)$ is the subdiffusion parameter, and $2$ with respect to space. Further, we provide the stability and convergence analysis. Finally, we present some numerical results.
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