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- W2171056870 abstract "In the presentation, we give an asymptotic expansion of probability density for a component of general diusion models. Our approach is based on infinite dimensional analysis on the Malliavin calculus and Kusuoka-Stroock’s asymptotic expansion theory for general Wiener functionals [2]. The initial term of the expansion is given by the ‘energy of path’ and we calculate the energy by solving Hamilton equation. There are many applications of asymptotic expansion theory to mathematical finance. Most popular application is the singular perturbation approach. For example, Hagan-Kumar-LesniewskiWoodward [1] gave a formula of implied volatilities for a stochastic volatility model named SABR model. Their formula is well-known for practitioners. We apply our approach to this problem and obtain general asymptotic expansion formulae of implied volatilities for general diusion models." @default.
- W2171056870 created "2016-06-24" @default.
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- W2171056870 date "2007-01-01" @default.
- W2171056870 modified "2023-09-27" @default.
- W2171056870 title "General Asymptotics of Wiener Functionals and Application to Mathematical Finance" @default.
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- W2171056870 doi "https://doi.org/10.2139/ssrn.1019587" @default.
- W2171056870 hasPublicationYear "2007" @default.
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