Integral representations of some functionals of fractional Brownian motion

Heikki Tikanmäki

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arXiv · 1102.5182

Integral representations of some functionals of fractional Brownian motion

Heikki Tikanmäki

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Abstract

We prove change of variables formulas [Itô formulas] for functions of both arithmetic and geometric averages of geometric fractional Brownian motion. They are valid for all convex functions, not only for smooth ones. These change of variables formulas provide us integral representations of functions of average in the sense of generalized Lebesgue-Stieltjes integral.

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Heikki Tikanmäki. 2011-09-01. Integral representations of some functionals of fractional Brownian motion. https://arxiv.org/abs/1102.5182

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