Pathwise Integrals and Itô–Tanaka Formula for Gaussian Processes
Pathwise Integrals and Itô–Tanaka Formula for Gaussian Processes
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高斯过程的路径积分和 Itô-Tanaka 公式
DOI:
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发表时间:
2013
期刊:
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通讯作者:
L. Viitasaari
中科院分区:
文献类型:
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作者:
T. Sottinen;L. Viitasaari
We prove an Itô–Tanaka formula and existence of pathwise stochastic integrals for a wide class of Gaussian processes. Motivated by financial applications, we define the stochastic integrals as forward-type pathwise integrals introduced by Föllmer and as pathwise generalized Lebesgue–Stieltjes integrals introduced by Zähle. As an application, we illustrate the importance of the Itô–Tanaka formula for pricing and hedging of financial derivatives.