Results 11 to 20 of about 4,724 (120)

The random conductance model with Cauchy tails [PDF]

, 2010
We consider a random walk in an i.i.d. Cauchy-tailed conductances environment. We obtain a quenched functional CLT for the suitably rescaled random walk, and, as a key step in the arguments, we improve the local limit theorem for $p^{\omega}_{n^2t}(0,y)$
Barlow, Martin T., Zheng, Xinghua
core   +1 more source

Approximation Theory for Matrices [PDF]

, 2004
We review the theory of optimal polynomial and rational Chebyshev approximations, and Zolotarev's formula for the sign function over the range (\epsilon \leq |z| \leq1).
A.D. Kennedy, Achieser, Akhiezer, Borigi, Borigi, Cheney, Chiu, Clark, Clark, de Forcrand, Edwards, Frommer, Golub, Horvath, Horvath, Jansen, Jegerlehner, Kennedy, Lüscher, Neuberger, Neuberger, Petrushev, Remez, Rivlin, Takaishi, Zolotarev   +25 more
core   +2 more sources

Counter-Flow Cooling Tower Test Cell

EPJ Web of Conferences, 2014
The article contains a design of a functional experimental model of a cross-flow mechanical draft cooling tower and the results and outcomes of measurements.
Dvořák Lukáš, Nožička Jiří
doaj   +1 more source

A strong invariance principle for associated random fields [PDF]

, 2005
In this paper we generalize Yu's [Ann. Probab. 24 (1996) 2079-2097] strong invariance principle for associated sequences to the multi-parameter case, under the assumption that the covariance coefficient u(n) decays exponentially as n\to \infty.
Balan, Raluca M.
core   +2 more sources

Maximum Likelihood Estimation for Linear Gaussian Covariance Models [PDF]

, 2016
We study parameter estimation in linear Gaussian covariance models, which are $p$-dimensional Gaussian models with linear constraints on the covariance matrix.
Richards, Donald, Uhler, Caroline, Zwiernik, Piotr   +2 more
core   +1 more source

Moments of the Riemann zeta function on short intervals of the critical line [PDF]

, 2019
We show that as $T\to \infty$, for all $t\in [T,2T]$ outside of a set of measure $\mathrm{o}(T)$, $$ \int_{-(\log T)^{\theta}}^{(\log T)^{\theta}} |\zeta(\tfrac 12 + \mathrm{i} t + \mathrm{i} h)|^{\beta} \mathrm{d} h = (\log T)^{f_{\theta}(\beta ...
Arguin, Louis-Pierre, Ouimet, Frédéric, Radziwiłł, Maksym   +2 more
core   +3 more sources

Differing averaged and quenched large deviations for random walks in random environments in dimensions two and three [PDF]

, 2010
We consider the quenched and the averaged (or annealed) large deviation rate functions $I_q$ and $I_a$ for space-time and (the usual) space-only RWRE on $\mathbb{Z}^d$. By Jensen's inequality, $I_a\leq I_q$. In the space-time case, when $d\geq3+1$, $I_q$
Yilmaz, Atilla, Zeitouni, Ofer
core   +3 more sources

Random generation of finitely generated subgroups of a free group [PDF]

, 2007
We give an efficient algorithm to randomly generate finitely generated subgroups of a given size, in a finite rank free group. Here, the size of a subgroup is the number of vertices of its representation by a reduced graph such as can be obtained by the ...
Cyril Nicaud, Frédérique Bassino, Université De Bordeaux, Université De Marne La Vallée   +3 more
core   +7 more sources

Large deviation principle for fractional Brownian motion with respect to capacity

, 2019
We show that fractional Brownian motion(fBM) defined via Volterra integral representation with Hurst parameter $H\geq\frac{1}{2}$ is a quasi-surely defined Wiener functional on classical Wiener space,and we establish the large deviation principle(LDP ...
Li, Jiawei, Qian, Zhongmin
core   +1 more source

Partial Coherence Estimation via Spectral Matrix Shrinkage under Quadratic Loss [PDF]

, 2015
Partial coherence is an important quantity derived from spectral or precision matrices and is used in seismology, meteorology, oceanography, neuroscience and elsewhere.
Schneider-Luftman, D., Walden, A. T.
core   +2 more sources