Results 1 to 10 of about 1,784 (73)

A note on randomly stopped sums with zero mean increments

open access: yesModern Stochastics: Theory and Applications, 2023
In this paper, the asmptotics is considered for the distribution tail of a randomly stopped sum ${S_{\nu }}={X_{1}}+\cdots +{X_{\nu }}$ of independent identically distributed consistently varying random variables with zero mean, where ν is a counting ...
Remigijus Leipus, Jonas Šiaulys
doaj   +1 more source

Asymptotics of the occupancy scheme in a random environment and its applications to tries [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2017
Consider $ m $ copies of an irreducible, aperiodic Markov chain $ Y $ taking values in a finite state space. The asymptotics as $ m $ tends to infinity, of the first time from which on the trajectories of the $ m $ copies differ, have been studied by ...
Silvia Businger
doaj   +1 more source

Precise lim sup behavior of probabilities of large deviations for sums of i.i.d. random variables

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 66, Page 3565-3576, 2004., 2004
Let {X, Xn; n ≥ 1} be a sequence of real‐valued i.i.d. random variables and let Sn=∑i=1nXi, n ≥ 1. In this paper, we study the probabilities of large deviations of the form P(Sn > tn1/p), P(Sn < −tn1/p), and P(|Sn| > tn1/p), where t > 0 and 0 < p < 2.
Deli Li, Andrew Rosalsky
wiley   +1 more source

Upper tails for triangles [PDF]

open access: yes, 2010
With $\xi$ the number of triangles in the usual (Erd\H{o}s-R\'enyi) random graph $G(m,p)$, $p>1/m$ and $\eta>0$, we show (for some $C_{\eta}>0$) $$\Pr(\xi> (1+\eta)\E \xi) < \exp[-C_{\eta}\min{m^2p^2\log(1/p),m^3p^3}].$$ This is tight up to the value of $
Alon   +10 more
core   +1 more source

Analysis of statistical equilibrium models of geostrophic turbulence

open access: yesInternational Journal of Stochastic Analysis, Volume 15, Issue 4, Page 327-347, 2002., 2002
Statistical equilibrium lattice models of coherent structures in geostrophic turbulence, formulated by discretizing the governing Hamiltonian continuum dynamics, are analyzed. The first set of results concern large deviation principles (LDP′s) for a spatially coarse‐grained process with respect to either the canonical and/or the microcanonical ...
Richard S. Ellis   +2 more
wiley   +1 more source

Some results on convergence rates for probabilities of moderate deviations for sums of random variables

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 15, Issue 3, Page 481-497, 1992., 1992
Let X, Xn, n ≥ 1 be a sequence of iid real random variables, and , n ≥ 1. Convergence rates of moderate deviations are derived, i.e., the rate of convergence to zero of certain tail probabilities of the partial sums are determined. For example, we obtain equivalent conditions for the convergence of series only under the assumptions convergence that EX =
Deli Li, Xiangchen Wang, M. Bhaskara Rao
wiley   +1 more source

Large deviation asymptotics for continued fraction expansions [PDF]

open access: yes, 2007
We study large deviation asymptotics for processes defined in terms of continued fraction digits. We use the continued fraction digit sum process to define a stopping time and derive a joint large deviation asymptotic for the upper and lower fluctuation ...
Kesseböhmer, Marc, Slassi, Mehdi
core   +2 more sources

Edgeworth expansions in operator form [PDF]

open access: yes, 2007
An operator form of asymptotic expansions for Markov chains is established. Coefficients are given explicitly. Such expansions require a certain modification of the classical spectral method.
Gnedenko   +10 more
core   +1 more source

Local Large deviation: A McMillian Theorem for Coloured Random Graph Processes

open access: yes, 2017
For a finite typed graph on $n$ nodes and with type law $\mu,$ we define the so-called spectral potential $\rho_{\lambda}(\,\cdot,\,\mu),$ of the graph.From the $\rho_{\lambda}(\,\cdot,\,\mu)$ we obtain Kullback action or the deviation function ...
Doku-Amponsah, Kwabena
core   +1 more source

Large deviations for the rightmost position in a branching Brownian motion

open access: yes, 2017
We study the lower deviation probability of the position of the rightmost particle in a branching Brownian motion and obtain its large deviation ...
Derrida, Bernard, Shi, Zhan
core   +3 more sources

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