34 citations · 104 across the 22 of their papers we have counts for
8 papers · 1 filter
Hermite Spectra and Kernel Factorization for Gaussian-Weighted Tests of Normality
Nikolaos Gkoumas, Nickos Papadatos, Samis Trevezas
We study the asymptotic null spectrum of Gaussian-weighted tests of univariate normality with estimated location and scale. Closed Hermite coefficients give equations both away fro…
On point estimators for Gamma and Beta distributions
Nickos Papadatos
Let be a random sample from the Gamma distribution with density , , where both (the shape parameter) and (the recipro…
Order statistics from exchangeable random variables are always sufficient
Nickos Papadatos
Let be an exchangeable random vector with distribution function , and denote by the corresponding order statistics. We show that the…
Optimal moment inequalities for order statistics from nonnegative random variables
Nickos Papadatos
We obtain the best possible upper bounds for the moments of a single order statistic from independent, non-negative random variables, in terms of the population mean. The main resu…
On the limiting distribution of sample central moments
Georgios Afendras, Nickos Papadatos, Violetta Piperigou
We investigate the limiting behavior of sample central moments, examining the special cases where the limiting (as the sample size tends to infinity) distribution is degenerate. Pa…
Some Counterexamples Concerning Maximal Correlation and Linear Regression
Nickos Papadatos
A class of examples concerning the relationship of linear regression and maximal correlation is provided. More precisely, these examples show that if two random variables have (str…
Linear Estimation of Location and Scale Parameters Using Partial Maxima
Nickos Papadatos
Consider an i.i.d. sample X^*_1,X^*_2,...,X^*_n from a location-scale family, and assume that the only available observations consist of the partial maxima (or minima)sequence, X^*…
An extended Stein-type covariance identity for the Pearson family with applications to lower variance bounds
G. Afendras, N. Papadatos, V. Papathanasiou
For an absolutely continuous (integer-valued) r.v. of the Pearson (Ord) family, we show that, under natural moment conditions, a Stein-type covariance identity of order hol…