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Normal convergence using Malliavin calculus with applications and examples
Authors:Juan José Víquez R
Institution:Department of Mathematics, Universidad de Costa Rica, San Jose, Costa Rica
Abstract:We prove the chain rule in the more general framework of the Wiener–Poisson space, allowing us to obtain the so-called Nourdin–Peccati bound. From this bound, we obtain a second-order Poincaré-type inequality that is useful in terms of computations. For completeness we survey these results on the Wiener space, the Poisson space, and the Wiener–Poisson space. We also give several applications to central limit theorems with relevant examples: linear functionals of Gaussian subordinated fields (where the subordinated field can be processes like fractional Brownian motion or the solution of the Ornstein–Uhlenbeck SDE driven by fractional Brownian motion), Poisson functionals in the first Poisson chaos restricted to infinitely many “small” jumps (particularly fractional Lévy processes), and the product of two Ornstein–Uhlenbeck processes (one in the Wiener space and the other in the Poisson space). We also obtain bounds for their rate of convergence to normality.
Keywords:Malliavin calculus  Wiener-Poisson space  central Limit Theorem  Ornstein-Uhlenbeck process  fractional Brownian motion  Levy processes
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