Results 11 to 20 of about 6,859,440 (291)

A note on central moments in C^∗-algebras [PDF]

open access: yesJournal of Mathematical Inequalities, 2015
We present sharp estimates of the $k^{\rm th}$ central moments of normal elements in $C^*$-algebras. We shall obtain an upper bound for the weak moments of general elements as well.
Léka, Zoltán, Zoltán Léka
openaire   +5 more sources

Moments of central values of quartic Dirichlet L-functions [PDF]

open access: yesJournal of Number Theory, 2021
In this paper, we study moments of the central values of quartic Dirichlet $L$-functions and establish quantitative non-vanishing result for these $L$-values.
Gao, Peng, Zhao, Liangyi
openaire   +5 more sources

An Expression for Fast Computation of Sample Central Moments

open access: yesThe American Statistician, 2018
An expression is provided for the expectation of sample central moments. It is practical and offers computational advantages over the original form due to Kong [The American Statistician, 65, 2011, 198–199].
Saralees Nadarajah, Rui Li
openaire   +3 more sources

Developing a crisis model based on higher-order moments

open access: yesHeliyon, 2022
In this paper, the goal is to create a model for detecting a crisis situation using the example of financial time series. An analysis of fixed and cumulative central and raw moments has been carried out.
Vera Ivanyuk
doaj   +1 more source

Eyes Recognition System Using Central Moment Features [PDF]

open access: yesEngineering and Technology Journal, 2011
Central moment is widely used in pattern recognition because of their discrimination power and robustness. For eye recognition these moments can also be normalized so that the moments are also size invariant.
Sundos A. Hameed Al azawi
doaj   +1 more source

On Moving Object Reconstruction By Moments [PDF]

open access: yes, 2002
Recent research using statistical moments to describe moving shapes through an image sequence has led to an interest in reconstructing moving shapes from their moment description. This paper discusses how the moment description through a series of frames
Nixon, Mark S.   +2 more
core   +2 more sources

Rate of escape and central limit theorem for the supercritical Lamperti problem [PDF]

open access: yes, 2010
The study of discrete-time stochastic processes on the half-line with mean drift at x given by μ1(x)→0 as x→∞ is known as Lamperti's problem. We give sharp almost-sure bounds for processes of this type in the case where μ1(x) is of order x−β for some β(0,
Menshikov, Mikhail V., Wade, A.R.
core   +3 more sources

Forces and moments generated by 3D direct printed clear aligners of varying labial and lingual thicknesses during lingual movement of maxillary central incisor: an in vitro study

open access: yesProgress in Orthodontics, 2023
Objective The objective of this study was to measure the forces and moments exerted by direct printed aligners (DPAs) with varying facial and lingual aligner surface thicknesses, in all three planes of space, during lingual movement of a maxillary ...
James Grant   +5 more
doaj   +1 more source

Central moments for arithmetic functions [PDF]

open access: yesPacific Journal of Mathematics, 1978
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

L-Moments-Based FORM Method for Structural Reliability Analysis Considering Correlated Input Random Variables

open access: yesBuildings, 2023
Leveraging the properties of the first three linear moments (L-moments), this study proposes an effective normal transformation for structural reliability analysis considering correlated input random variables, in which the admissible range of the ...
Zhi-Peng Li   +4 more
doaj   +1 more source

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