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The large deviation principle is established for the distributions of a class of generalized stochastic porous media equations for both small noise and short time.

概率论 · 数学 2007-05-23 Michael Röckner , Feng-Yu Wang , Liming Wu

We prove two Large deviations principles (LDP) in the zone of moderate deviation probabilities. First we establish LDP for the conditional distributions of moderate deviations of empirical bootstrap measures given empirical probability…

统计理论 · 数学 2014-05-22 Mikhail Ermakov

We provide a unifying treatment of pathwise moderate deviations for models commonly used in financial applications, and for related integrated functionals. Suitable scaling allows us to transfer these results into small-time, large-time and…

数理金融 · 定量金融 2018-12-04 Antoine Jacquier , Konstantinos Spiliopoulos

Motivated by the need, in some Bayesian likelihood free inference problems, of imputing a multivariate counting distribution based on its vector of means and variance-covariance matrix, we define a generic multivariate discrete…

应用统计 · 统计学 2011-03-28 Marcos Capistrán , J. Andrés Christen

The probability that the sum of independent, centered, identically distributed, heavy-tailed random variables achieves a very large value is asymptotically equal to the probability that there exists a single summand equalling that value. We…

概率论 · 数学 2024-02-15 Quirin Vogel

In this paper we establish a moderate deviation principle of the hitting times for trajectories of sums of independent and identically distributed random variables. The main idea of proof is to convert the moderate deviations over a small…

概率论 · 数学 2023-11-10 Yuheng He

We consider Markov chains which are polynomially mixing, in a weak sense expressed in terms of the space of functions on which the mixing speed is controlled. In this context, we prove polynomial large and moderate deviations inequalities.…

概率论 · 数学 2016-07-22 J Dedecker , Sébastien Gouëzel , F Merlevède

We study product regular conditional probabilities under measures of two coordinates with respect to the second coordinate that are weakly continuous on the support of the marginal of the second coordinate. Assuming that there exists a…

概率论 · 数学 2021-10-18 Willem van Zuijlen

We consider a class of tempered subordinators, namely a class of subordinators with one-dimensional marginal tempered distributions which belong to a family studied in [3]. The main contribution in this paper is a non-central moderate…

概率论 · 数学 2020-11-05 Nikolai Leonenko , Claudio Macci , Barbara Pacchiarotti

We consider moderately trimmed sums of non-negative i.i.d. random variables. We show that for every distribution function there exists a proper moderate trimming such that for the trimmed sum a non-trivial strong law of large numbers holds.…

概率论 · 数学 2019-05-23 Marc Kesseböhmer , Tanja Schindler

We revisit the problem of condensation for independent, identically distributed random variables with a power-law tail, conditioned by the value of their sum. For large values of the sum, and for a large number of summands, a condensation…

统计力学 · 物理学 2022-03-03 Claude Godrèche

We establish Cram\'er-type moderate deviation theorems for sums of locally dependent random variables and combinatorial central limit theorems. Under some mild exponential moment conditions, optimal error bounds and convergence ranges are…

概率论 · 数学 2021-12-22 Song-Hao Liu , Zhuo-Song Zhang

In this paper we study precise large deviations for the partial sums of a stationary sequence with a subexponential marginal distribution. Our main focus is on distributions which either have a regularly varying or a lognormal-type tail. We…

概率论 · 数学 2020-09-15 Thomas Mikosch , Igor Rodionov

We consider a $\mathbb{R}^d$-valued branching random walk with a stationary and ergodic environment $\xi=(\xi_n)$ indexed by time $n\in\mathbb{N}$. Let $Z_n$ be the counting measure of particles of generation $n$. With the help of the…

概率论 · 数学 2019-10-15 Chunmao Huang , Xin Wang , Xiaoqiang Wang

We explore some properties of the conditional distribution of an i.i.d. sample under large exceedances of its sum. Thresholds for the asymptotic independance of the summands are observed, in contrast with the classical case when the…

统计理论 · 数学 2016-10-14 Maeva Biret , Michel Broniatowski , Zangsheng Cao

In this paper we obtain a Bernstein type inequality for a class of weakly dependent and bounded random variables. The proofs lead to a moderate deviations principle for sums of bounded random variables with exponential decay of the strong…

概率论 · 数学 2012-02-23 Florence Merlevède , Magda Peligrad , Emmanuel Rio

Let $\{{\bf \mathcal{Z}}_n:n\geq 1\}$ be a sequence of i.i.d. random probability measures. Independently, for each $n\geq 1$, let $(X_{n1},\ldots, X_{nn})$ be a random vector of positive random variables that add up to one. This paper…

概率论 · 数学 2021-06-24 Shui Feng

The Moderate Deviations Principle (MDP) is well-understood for sums of independent random variables, worse understood for stationary random sequences, and scantily understood for random fields. Here it is established for splittable random…

概率论 · 数学 2019-09-16 Boris Tsirelson

The term \emph{moderate deviations} is often used in the literature to mean a class of large deviation principles that, in some sense, fill the gap between a convergence in probability to zero (governed by a large deviation principle) and a…

概率论 · 数学 2022-07-15 Rita Giuliano , Claudio Macci

We prove a large deviations principle for the empirical law of the block sizes of a uniformly distributed non-crossing partition. As an application we obtain a variational formula for the maximum of the support of a compactly supported…

概率论 · 数学 2011-07-04 Janosch Ortmann