Sayed Nigm

Prof. Sayed Nigm


Research Focus & Metrics

Academic Career Length

23Years (2004-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2019 in Journal of Statistical Theory and Applications
Verified
Journal Article
Open access
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HBH. M. Barakat
H. M. Barakat
SNSayed Nigm
Sayed Nigm
MAMetwally Alsayed Alawady
Metwally Alsayed Alawady
IHI. A. Husseiny
I. A. Husseiny
We introduce the generalized Farlie–Gumbel–Morgenstern (FGM) type bivariate-generalized exponential distribution. Some distributional properties of concomitants of order statistics as well as record values for this family are studied. Recurrence relations between the moments of concomitants are obtained, some of these recurrence relations were not publishes before for Morgenstern type bivariate distributions. Moreover, most of the paper results are extended to arbitrary distributions.

10 September 2011 in Arabian Journal for Science and Engineering
Verified
Journal Article
Closed access
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Haroon BarakatHaroon Barakat
Haroon Barakat
SNSayed Nigm
Sayed Nigm
MEMagdy El-Adll
Magdy El-Adll

31 March 2016 in Bulletin of the Malaysian Mathematical Sciences Society
Verified
Journal Article
Closed access
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HBH. M. Barakat
H. M. Barakat
SNSayed Nigm
Sayed Nigm
MHM. H. Harpy
M. H. Harpy

30 May 2013 in Statistics
Verified
Journal Article
Closed access
Haroon BarakatHaroon Barakat
Haroon Barakat
SNSayed Nigm
Sayed Nigm
In this paper, we show that both the class of beta-generated distributions GF and its base distribution F belong to the same domain of maximal (or minimal or upper record value or lower record value) attraction. Moreover, it is shown that the weak convergence of any non-extreme order statistic (central or intermediate order statistic), based on a base distribution F, to a non-degenerate limit type implies the weak convergence of GF to a non-degenerate limit type. The relations between the two limit types are deduced.

8 November 2017 in Quaestiones Mathematicae
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Journal Article
Closed access
EZE.O. Abo Zaid
E.O. Abo Zaid
Haroon BarakatHaroon Barakat
Haroon Barakat
SNSayed Nigm
Sayed Nigm
In this paper we study the limit distributions of extreme, intermediate and central m-generalized order statistics, as well as m-dual generalized order statistics, of a stationary Gaussian sequence under equi-correlated set up. Moreover, the result of extremes is extended to a wide subclass of generalized order statistics, as well as dual generalized order statistics, when the parameters γ1,n, γ2,n, … , γn,n are assumed to be pairwise different.

1 March 2005 in Journal of Applied Mathematics and Computing
Verified
Journal Article
Closed access
PDF file
HBH. M. Barakat
H. M. Barakat
SNSayed Nigm
Sayed Nigm
MAM. M. Askar
M. M. Askar