On the stochastic integral representation of Brownian functionals

Author:

Namgalauri Ekaterine1,Purtukhia Omar2

Affiliation:

1. Department of Mathematics , Ivane Javakhishvili Tbilisi State University , 13 University Str. , Tbilisi 0186 , Georgia

2. Department of Mathematics , Ivane Javakhishvili Tbilisi State University , 13 University Str., 0186; and A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University, 2 Merab Aleksidze II Lane , Tbilisi 0193 , Georgia

Abstract

Abstract In this paper, we study the question of representing one class of Brownian functionals as a stochastic Itô integral with an explicit form of the integrand. The considered class of functionals also includes functionals that are not smooth in the sense of Malliavin, to which both the well-known Clark–Ocone formula (1984) and its generalization, the Glonti–Purtukhia formula (2017), are inapplicable.

Publisher

Walter de Gruyter GmbH

Subject

General Mathematics

Reference21 articles.

1. J. M. C. Clark, The representation of functionals of Brownian motion by stochastic integrals, Ann. Math. Statist. 41 (1970), 1282–1295.

2. C. Dellacherie and P.-A. Meyer, Probabilités et potentiel. Chapitres V à VIII, Act. Sci. Indust. 1385, Hermann, Paris, 1980.

3. O. Glonti and O. Purtukhia, Hedging of European option of integral type, Bull. Georgian Natl. Acad. Sci. (N. S.) 8 (2014), no. 3, 4–13.

4. O. Glonti and O. Purtukhia, Hedging of one european option of integral type in Black–Scholes model, Int. J. Eng. Innov. Technol. 4 (2014), no. 5, 51–61.

5. O. A. Glonti and O. G. Purtukhiya, On an integral representation of a Brownian functional (in Russian), Teor. Veroyatn. Primen. 61 (2016), no. 1, 158-164

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