Results 31 to 40 of about 381,656 (263)

Universality of the minimum modulus for random trigonometric polynomials

open access: yesDiscrete Analysis, 2021
Universality of the minimum modulus for random trigonometric polynomials, Discrete Analysis 2021:20, 46 pp. This paper belongs to a long tradition of study of the behaviour of random polynomials that goes back at least to Littlewood.
Nicholas A. Cook, Hoi Nguyen
doaj   +1 more source

Optimization of small deviation for mixed fractional Brownian motion with trend

open access: yes, 2018
In this paper, we investigate two-sided bounds for the small ball probability of a mixed fractional Brownian motion with a general deterministic trend function, in terms of respective small ball probability of a mixed fractional Brownian motion without ...
MacKay, Anne   +2 more
core   +1 more source

Hitting spheres on hyperbolic spaces [PDF]

open access: yes, 2011
For a hyperbolic Brownian motion on the Poincar\'e half-plane $\mathbb{H}^2$, starting from a point of hyperbolic coordinates $z=(\eta, \alpha)$ inside a hyperbolic disc $U$ of radius $\bar{\eta}$, we obtain the probability of hitting the boundary ...
E. Orsingher   +3 more
core   +2 more sources

k-Nearest Neighbour Estimation of the Conditional Set-Indexed Empirical Process for Functional Data: Asymptotic Properties

open access: yesAxioms
The main aim of this paper is to improve the existing limit theorems for set-indexed conditional empirical processes involving functional strong mixing random variables.
Youssouf Souddi, Salim Bouzebda
doaj   +1 more source

Equivalence of weak and strong modes of measures on topological vector spaces [PDF]

open access: yes, 2018
A strong mode of a probability measure on a normed space $X$ can be defined as a point $u$ such that the mass of the ball centred at $u$ uniformly dominates the mass of all other balls in the small-radius limit.
Lie, Han Cheng, Sullivan, T. J.
core   +2 more sources

Small ball probability estimates for log-concave measures [PDF]

open access: yesTransactions of the American Mathematical Society, 2011
We establish a small ball probability inequality for isotropic log \log -concave probability measures: there exist absolute constants c 1 , c 2 > 0 c_{1}, c_{2}>0 such that if X
openaire   +2 more sources

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Low Diameter Graph Decompositions by Approximate Distance Computation [PDF]

open access: yes, 2019
In many models for large-scale computation, decomposition of the problem is key to efficient algorithms. For distance-related graph problems, it is often crucial that such a decomposition results in clusters of small diameter, while the probability that ...
Becker, Ruben   +2 more
core   +2 more sources

Microstructure Design of Steel‐Spinel Composites via Spark Plasma Sintering Process

open access: yesAdvanced Engineering Materials, EarlyView.
This study illustrates how spark plasma sintering at reduced oxygen partial pressure enables controlled formation of steel‐spinel composites through tailored redox reactions and cation exchange. Comparison of the MgO–Fe2O3, steel–(MgO+Cr2O3), and steel–(MgO+Fe2O3) systems shows how oxygen activity and interface chemistry govern spinel formation, phase ...
Mahnaz Mehdizadehlima   +4 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

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