Fractional Fokker-Planck Equation and Black-Scholes Formula in Composite-Diffusive Regime |
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Authors: | Jin-Rong Liang Jun Wang Long-Jin Lǔ Hui Gu Wei-Yuan Qiu Fu-Yao Ren |
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Institution: | 1.Department of Mathematics,East China Normal University,Shanghai,China;2.Department of Mathematics,Fudan University,Shanghai,China |
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Abstract: | In statistical physics, anomalous diffusion plays an important role, whose applications have been found in many areas. In
this paper, we introduce a composite-diffusive fractional Brownian motion X
α,H
(t)=X
H
(S
α
(t)), 0<α,H<1, driven by anomalous diffusions as a model of asset prices and discuss the corresponding fractional Fokker-Planck equation
and Black-Scholes formula. We obtain the fractional Fokker-Planck equation governing the dynamics of the probability density
function of the composite-diffusive fractional Brownian motion and find the Black-Scholes differential equation driven by
the stock asset X
α,H
(t) and the corresponding Black-Scholes formula for the fair prices of European option. |
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Keywords: | |
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