A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral Equations

It is well known that Itô’s formula is an essential tool in stochastic analysis. But it cannot be used for general stochastic Volterra integral equations (SVIEs). In this paper, we first introduce the concept of quasi-Itô process which is a generalization of well-known Itô process. And then we exten...

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Main Authors: Wenxue Li, Meng Liu, Ke Wang
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/292740
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author Wenxue Li
Meng Liu
Ke Wang
author_facet Wenxue Li
Meng Liu
Ke Wang
author_sort Wenxue Li
collection DOAJ
description It is well known that Itô’s formula is an essential tool in stochastic analysis. But it cannot be used for general stochastic Volterra integral equations (SVIEs). In this paper, we first introduce the concept of quasi-Itô process which is a generalization of well-known Itô process. And then we extend Itô’s formula to a more general form applicable to some kinds of SVIEs. Furthermore, the stability in probability for some SVIEs is analyzed by the generalized Itô’s formula. Our work shows that the generalized Itô’s formula is powerful and flexible to use in many relevant fields.
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institution Kabale University
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publishDate 2012-01-01
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spelling doaj-art-ba95b1744cf34ae7a54fd874c9d4f7c92025-02-03T01:26:32ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/292740292740A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral EquationsWenxue Li0Meng Liu1Ke Wang2Department of Mathematics, Harbin Institute of Technology (Weihai), Weihai 264209, ChinaDepartment of Mathematics, Harbin Institute of Technology (Weihai), Weihai 264209, ChinaDepartment of Mathematics, Harbin Institute of Technology (Weihai), Weihai 264209, ChinaIt is well known that Itô’s formula is an essential tool in stochastic analysis. But it cannot be used for general stochastic Volterra integral equations (SVIEs). In this paper, we first introduce the concept of quasi-Itô process which is a generalization of well-known Itô process. And then we extend Itô’s formula to a more general form applicable to some kinds of SVIEs. Furthermore, the stability in probability for some SVIEs is analyzed by the generalized Itô’s formula. Our work shows that the generalized Itô’s formula is powerful and flexible to use in many relevant fields.http://dx.doi.org/10.1155/2012/292740
spellingShingle Wenxue Li
Meng Liu
Ke Wang
A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral Equations
Journal of Applied Mathematics
title A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral Equations
title_full A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral Equations
title_fullStr A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral Equations
title_full_unstemmed A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral Equations
title_short A Generalization of Itô's Formula and the Stability of Stochastic Volterra Integral Equations
title_sort generalization of ito s formula and the stability of stochastic volterra integral equations
url http://dx.doi.org/10.1155/2012/292740
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