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of 61
pro vyhledávání: '"Aguech, Rafik"'
Publikováno v:
S\'eminaire Lotharingien de Combinatoire, vol. 87B, article #12, 2023
In this article, we consider several models of random walks in one or several dimensions, additionally allowing, at any unit of time, a reset (or "catastrophe") of the walk with probability $q$. We establish the distribution of the final altitude. We
Externí odkaz:
http://arxiv.org/abs/2311.13124
Autor:
Aguech, Rafik1 (AUTHOR) raguech@ksu.edu.sa
Publikováno v:
Axioms (2075-1680). Sep2024, Vol. 13 Issue 9, p629. 9p.
An extended Polya urn Model with two colors, black and white, is studied with some SLLN and CLT on the proportion of white balls.
Comment: 16 pages
Comment: 16 pages
Externí odkaz:
http://arxiv.org/abs/2109.07959
Akademický článek
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Autor:
Aguech, Rafik1 (AUTHOR) raguech@ksu.edu.sa, Mohamed, Hanene2 (AUTHOR) hanene.mohamed@parisnanterre.fr
Publikováno v:
Mathematics (2227-7390). Dec2023, Vol. 11 Issue 24, p4967. 13p.
In this paper, we consider a multi-drawing urn model with random addition. At each discrete time step, we draw a sample of m balls. According to the composition of the drawn colors, we return the balls together with a random number of balls depending
Externí odkaz:
http://arxiv.org/abs/1802.04489
Autor:
Aguech, Rafik1 (AUTHOR) raguech@ksu.edu.sa, Abdelkader, Mohamed1 (AUTHOR) raguech@ksu.edu.sa
Publikováno v:
Mathematics (2227-7390). Sep2023, Vol. 11 Issue 17, p3774. 22p.
Following the model introduced by Aguech, Lasmar and Mahmoud [Probab. Engrg. Inform. Sci. 21 (2007) 133-141], the weighted depth of a node in a labelled rooted tree is the sum of all labels on the path connecting the node to the root. We analyze weig
Externí odkaz:
http://arxiv.org/abs/1707.00165
Autor:
Aguech, Rafik, Jedidi, Wissem
We give several new characterizations of completely monotone functions and Bernstein functions via two approaches: the first one is driven algebraically via elementary preserving mappings and the second one is developed in terms of the behavior of th
Externí odkaz:
http://arxiv.org/abs/1511.08345
Autor:
Abdelkader, Mohamed, Aguech, Rafik
Publikováno v:
AIMS Mathematics (2473-6988); 2024, Vol. 9 Issue 8, p19888-19910, 23p