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A Method of Reducing Dimension of Space Variables in Multi-dimensional Black-Scholes Equations

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  • Hyong-chol O
  • Yong-hwa Ro
  • Ning Wan

Abstract

We study a method of reducing space dimension in multi-dimensional Black-Scholes partial differential equations as well as in multi-dimensional parabolic equations. We prove that a multiplicative transformation of space variables in the Black-Scholes partial differential equation reserves the form of Black-Scholes partial differential equation and reduces the space dimension. We show that this transformation can reduce the number of sources of risks by two or more in some cases by giving remarks and several examples of financial pricing problems. We also present that the invariance of the form of Black-Scholes equations is based on the invariance of the form of parabolic equation under a change of variables with the linear combination of variables.

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  • Hyong-chol O & Yong-hwa Ro & Ning Wan, 2014. "A Method of Reducing Dimension of Space Variables in Multi-dimensional Black-Scholes Equations," Papers 1406.2053, arXiv.org.
    • Handle: RePEc:arx:papers:1406.2053
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    References listed on IDEAS

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    3. Garman, Mark B. & Kohlhagen, Steven W., 1983. "Foreign currency option values," Journal of International Money and Finance, Elsevier, vol. 2(3), pages 231-237, December.
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