## Abstract

We give necessary and sufficient conditions to characterize the convergence in distribution of a sequence of arbitrary random variables to a probability distribution which is the invariant measure of a diffusion process. This class of target distributions includes the most known continuous probability distributions. Precisely speaking, we characterize the convergence in total variation to target distributions which are not Gaussian or Gamma distributed, in terms of the Malliavin calculus and of the coefficients of the associated diffusion process. We also prove that, among the distributions whose associated squared diffusion coefficient is a polynomial of second degree (with some restrictions on its coefficients), the only possible limits of sequences of multiple integrals are the Gaussian and the Gamma laws.

Original language | English |
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Pages (from-to) | 1463-1496 |

Number of pages | 34 |

Journal | Bernoulli |

Volume | 24 |

Issue number | 2 |

DOIs | |

Publication status | Published - May 2018 |

## Keywords

- Convergence in total variation
- Diffusions
- Fourth Moment Theorem
- Invariant measure
- Malliavin calculus
- Multiple stochastic integrals
- Stein's method
- Weak convergence

## ASJC Scopus subject areas

- Statistics and Probability