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20042025
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math.PR2025

On the contraction properties of Sinkhorn semigroups

O. Deniz Akyildiz, Pierre del Moral, Joaquin Miguez

We develop a novel stability theory for Sinkhorn semigroups based on Lyapunov techniques and quantitative contraction coefficients, and establish exponential convergence of Sinkhor…

math.PR2017★ 1 cited

On the eigenproblem for Gaussian bridges

P. Chigansky, M. Kleptsyna, D. Marushkevych

Spectral decomposition of the covariance operator is one of the main building blocks in the theory and applications of Gaussian processes. Unfortunately it is notoriously hard to d…

math.PR2017

Heavy Tails for an Alternative Stochastic Perpetuity Model

Thomas Mikosch, Mohsen Rezapour, Olivier Wintenberger

In this paper we consider a stochastic model of perpetuity-type. In contrast to the classical affine perpetuity model of Kesten [12] and Goldie [8] all discount factors in the mode…

math.PR2016

Performance analysis of Markovian queue with impatience and vacation times

Assia Boumahdaf

We consider an queueing system with impatient customers with multiple and single vacations. It is assumed that customers are impatient whenever the state of the server. We…

math.PR2015★ 2 cited

Statistical analysis of the mixed fractional Ornstein--Uhlenbeck process

Pavel Chigansky, Marina Kleptsyna

This paper addresses the problem of estimating drift parameter of the Ornstein - Uhlenbeck type process, driven by the sum of independent standard and fractional Brownian motions.…

math.PR2012★ 4 cited

Weak transport inequalities and applications to exponential inequalities and oracle inequalities

Olivier Wintenberger

We extend the dimension free Talagrand inequalities for convex distance \cite{talagrand:1995} using an extension of Marton's weak transport \cite{marton:1996a} to other metrics tha…

math.PR2011★ 1 cited

Towards zero variance estimators for rare event probabilities

Michel Broniatowski, Virgile Caron

Improving Importance Sampling estimators for rare event probabilities requires sharp approximations of conditional densities. This is achieved for events E_{n}:=(f(X_{1})+...+f(X_{…

math.PR2010★ 2 cited

Long runs under point conditioning. The real case

Michel Broniatowski, Virgile Caron

This paper presents a sharp approximation of the density of long runs of a random walk conditioned on its end value or by an average of a functions of its summands as their number…

math.PR2010★ 49 cited

Minimization of divergences on sets of signed measures

Michel Broniatowski, Amor Keziou

We consider the minimization problem of -divergences between a given probability measure and subsets of the vector space of all signed finite m…

math.PR2009★ 1 cited

On the structure of Gaussian random variables

Ciprian Tudor

We study when a given Gaussian random variable on a given probability space is equal almost surely to where is a Brownian motion defined on the sam…

math.PR2009★ 2 cited

On the discretization of backward doubly stochastic differential equations

Omar Aboura

In this paper, we are dealing with the approximation of the process (Y,Z) solution to the backward doubly stochastic differential equation with the forward process X . After provin…

math.PR2009

Hsu-Robbins and Spitzer's theorems for the variations of fractional Brownian motion

Ciprian Tudor

Using recent results on the behavior of multiple Wiener-Itô integrals based on Stein's method, we prove Hsu-Robbins and Spitzer's theorems for sequences of correlated random variab…

math.PR2008

Limit Behaviour of Sequential Empirical Measure Processes

Omar El-Dakkak

In this paper, we obtain some uniform laws of large numbers and functional central limit theorems for sequential empirical measure processes indexed by classes of product functions…

math.PR2008★ 46 cited

On mean central limit theorems for stationary sequences

Jérôme Dedecker, Emmanuel Rio

In this paper, we give estimates of the minimal distance between the distribution of the normalized partial sum and the limiting Gaussian distribution for stationa…

math.PR2008★ 1 cited

Stein's method and normal approximation of Poisson functionals

Giovanni Peccati, Josep Lluís Solé, Murad S. Taqqu +1

We combine Stein's method with a version of Malliavin calculus on the Poisson space. As a result, we obtain explicit Berry-Esséen bounds in Central Limit Theorems (CLTs) involving…

math.PR2008★ 1 cited

Representations of SO(3) and angular polyspectra

Domenico Marinucci, Giovanni Peccati

We characterize the angular polyspectra, of arbitrary order, associated with isotropic fields defined on the sphere S^2. Our techniques rely heavily on group representation theory,…

math.PR2008★ 24 cited

The notion of -weak dependence and its applications to bootstrapping time series

Paul Doukhan, Michael H. Neumann

We give an introduction to a notion of weak dependence which is more general than mixing and allows to treat for example processes driven by discrete innovations as they appear wit…

math.PR2008★ 132 cited

Large deviations for the Boussinesq Equations under Random Influences

Jinqiao Duan, Annie Millet

A Boussinesq model for the Benard convection under random influences is considered as a system of stochastic partial differential equations. This is a coupled system of stochastic…

math.PR2007★ 3 cited

Stein's method on Wiener chaos

Ivan Nourdin, Giovanni Peccati

We combine Malliavin calculus with Stein's method, in order to derive explicit bounds in the Gaussian and Gamma approximations of random variables in a fixed Wiener chaos of a gene…

math.PR2007★ 11 cited

Some unbounded functions of intermittent maps for which the central limit theorem holds

J. Dedecker, C. Prieur

We compute some dependence coefficients for the stationary Markov chain whose transition kernel is the Perron-Frobenius operator of an expanding map of with a neutral…

math.PR2007

Moderate deviations for stationary sequences of bounded random variables

Jérôme Dedecker, Florence Merlevède, Magda Peligrad +1

In this paper we derive the moderate deviation principle for stationary sequences of bounded random variables under martingale-type conditions. Applications to functions of -mix…

math.PR2007★ 4 cited

Poisson approximation for search of rare words in DNA sequences

Nicolas Vergne, Miguel Abadi

Using recent results on the occurrence times of a string of symbols in a stochastic process with mixing properties, we present a new method for the search of rare words in biologic…

math.PR2007★ 2 cited

Weighted power variations of iterated Brownian motion

Ivan Nourdin, Giovanni Peccati

We characterize the asymptotic behaviour of the weighted power variation processes associated with iterated Brownian motion. We prove weak convergence results in the sense of finit…

math.PR2007★ 4 cited

Group Representations and High-Resolution Central Limit Theorems for Subordinated Spherical Random Fields

Domenico Marinucci, Giovanni Peccati

We study the weak convergence (in the high-frequency limit) of the frequency components associated with Gaussian-subordinated, spherical and isotropic random fields. In particular,…