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We study the one-dimensional branching random walk in the case when the step size distribution has a stretched exponential tail, and, in particular, no finite exponential moments. The tail of the step size $X$ decays as $\mathbb{P}[X \geq…

概率论 · 数学 2022-04-12 Piotr Dyszewski , Nina Gantert , Thomas Höfelsauer

Pin sequences play an important role in the structural study of permutation classes. In this paper, we study the permutation classes that comprise all the finite subpermutations contained in an infinite pin sequence. We prove that these…

组合数学 · 数学 2026-03-10 Ben Jarvis

A consecutive pattern in a permutation $\pi$ is another permutation $\sigma$ determined by the relative order of a subsequence of contiguous entries of $\pi$. Traditional notions such as descents, runs and peaks can be viewed as particular…

组合数学 · 数学 2015-10-23 Sergi Elizalde

We prove large deviation results for the position of the rightmost particle, denoted by $M_n$, in a one-dimensional branching random walk in a case when Cram\'er's condition is not satisfied. More precisely we consider step size…

概率论 · 数学 2020-06-17 Piotr Dyszewski , Nina Gantert , Thomas Höfelsauer

Permutons, which are probability measures on the unit square $[0, 1]^2$ with uniform marginals, are the natural scaling limits for sequences of (random) permutations. We introduce a $d$-dimensional generalization of these measures for all…

概率论 · 数学 2025-02-03 Jacopo Borga , Andrew Lin

This paper focuses on the size-biased permutation of $n$ independent and identically distributed (i.i.d.) positive random variables. This is a finite dimensional analogue of the size-biased permutation of ranked jumps of a subordinator…

概率论 · 数学 2015-09-30 Jim Pitman , Ngoc M. Tran

For sequences of non-lattice weakly dependent random variables, we obtain asymptotic expansions for Large Deviation Principles. These expansions, commonly referred to as strong large deviation results, are in the spirit of Edgeworth…

概率论 · 数学 2020-03-10 Kasun Fernando , Pratima Hebbar

We extend some known results relating the distribution tails of a continuous local martingale supremum and its quadratic variation to the case of locally square integrable martingales with bounded jumps. The predictable and optional…

概率论 · 数学 2007-05-23 R. Liptser , A. Novikov

Multivariate rapid variation describes decay rates of joint light tails of a multivariate distribution. We impose a local uniformity condition to control decay variation of distribution tails along different directions, and using…

统计理论 · 数学 2021-04-30 Haijun Li

Consider linear regression where the examples are generated by an unknown distribution on $R^d\times R$. Without any assumptions on the noise, the linear least squares solution for any i.i.d. sample will typically be biased w.r.t. the least…

机器学习 · 计算机科学 2018-10-08 Michał Dereziński , Manfred K. Warmuth , Daniel Hsu

We present a formalization of the well-known thesis that, in the case of independent identically distributed random variables $X_1,\dots,X_n$ with power-like tails of index $\alpha\in(0,2)$, large deviations of the sum $X_1+\dots+X_n$ are…

概率论 · 数学 2021-10-29 Iosif Pinelis

We present an analytical technique to compute the probability of rare events in which the largest eigenvalue of a random matrix is atypically large (i.e.\ the right tail of its large deviations). The results also transfer to the left tail…

统计力学 · 物理学 2021-05-26 Antoine Maillard

Our interest is in the cumulative probabilities Pr(L(t) \le l) for the maximum length of increasing subsequences in Poissonized ensembles of random permutations, random fixed point free involutions and reversed random fixed point free…

数学物理 · 物理学 2009-11-07 Alexei Borodin , Peter J. Forrester

In previous work Majda and McLaughlin computed explicit expressions for the $2N$th moments of a passive scalar advected by a linear shear flow in the form of an integral over ${\bf R}^N$. In this paper we first compute the asymptotics of…

流体动力学 · 物理学 2007-05-23 J. C. Bronski , R. M. McLaughlin

We provide large deviations estimates for the upper tail of the number of triangles in scale-free inhomogeneous random graphs where the degrees have power law tails with index $-\alpha, \alpha \in (1,2)$. We show that upper tail…

概率论 · 数学 2024-03-25 Clara Stegehuis , Bert Zwart

We study the kinetics of random sequential adsorption of a mixture of particles with continuous distribution of sizes for different deposition rules. It appears in the long time limit the resulting system can be described using the fractal…

凝聚态物理 · 物理学 2008-02-03 M. K. Hassan

This paper studies the effect of truncation on the large deviations behavior of the partial sum of a triangular array coming from a truncated power law model. Each row of the triangular array consists of i.i.d. random vectors, whose…

概率论 · 数学 2011-07-14 Arijit Chakrabarty

We prove that the tail probabilities of sums of independent uniform random variables, up to a multiplicative constant, are dominated by the Gaussian tail with matching variance and find the sharp constant for such stochastic domination.

概率论 · 数学 2026-03-05 Xinjie He , Tomasz Tkocz , Katarzyna Wyczesany

We study the convergence of certain subseries of the harmonic series corresponding to increasing sequences of integers whose digits in a certain base are not uniformly distributed. We also discuss the case of irregular sequences, where the…

数论 · 数学 2009-03-13 Gabor Korvin

In this paper non-asymptotic exponential and moment estimates are derived for tail of distribution for discrete time martingale under norming sequence 1/n, as in the classical Law of Large Numbers (LLN), by means of martingale differences…

概率论 · 数学 2012-07-10 E. Ostrovsky , L. Sirota