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Lie symmetry analysis and exact solutions of time fractional Black–Scholes equation

Author

Listed:
  • Jicheng Yu

    (School of Science, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P. R. China)

  • Yuqiang Feng

    (School of Science, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P. R. China)

  • Xianjia Wang

    (��School of Economic and Management, Wuhan University, Wuhan 430072, Hubei, P. R. China)

Abstract

The Black–Scholes equation is an important analytical tool for option pricing in finance. This paper discusses the constructive methods of exact solutions to time fractional Black–Scholes equation. By constructing one-parameter Lie symmetry transformations and their corresponding group generators, time fractional Black–Scholes equation is reduced to a fractional ordinary differential equation and some group-invariant solutions are obtained. Using the invariant subspace method, the analytical representations of two forms of exact solutions of time fractional Black–Scholes equation are given constructively, and the characteristics and differences of the two exact solutions are compared in the sense of geometric figures. In this paper, the form of the equation is generalized, and more group invariant solutions and analytical solutions in the form of separated variables are obtained.

Suggested Citation

  • Jicheng Yu & Yuqiang Feng & Xianjia Wang, 2022. "Lie symmetry analysis and exact solutions of time fractional Black–Scholes equation," International Journal of Financial Engineering (IJFE), World Scientific Publishing Co. Pte. Ltd., vol. 9(04), pages 1-17, December.
    • Handle: RePEc:wsi:ijfexx:v:09:y:2022:i:04:n:s2424786322500232
    DOI: 10.1142/S2424786322500232
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    Cited by:

    1. Yu, Jicheng & Feng, Yuqiang, 2024. "On the generalized time fractional reaction–diffusion equation: Lie symmetries, exact solutions and conservation laws," Chaos, Solitons & Fractals, Elsevier, vol. 182(C).

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