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1


Sadek BOUROUBI, Sur la variance du poset booléen, Congres national des Mathématiques, CNM, Tizi-Ouzou, Algérie, 21-23 Janvier 1994.


2


Sadek BOUROUBI, The Alekseev condition on the principle filters in the partition lattice, Rencontre des Mathématiciens Algériens, RMA, Alger, Algérie, 21–24 Mai 2000.


5


Sadek BOUROUBI, Caractérisation de l’optimalité de la fonction de rang dans un poset gradué, Quatrième rencontre de Recherche Opérationnelle, 4RRO, Alger, Algérie, 6-8 Octobre 1996.


6


Sadek BOUROUBI, On new identities for Bell’s polynomials, 19th British Combinatorial Conference, University of Wales, 19th BCC, BONGOR, Grande Bretagne, 30 Juin-04 Juillet 2003 http://www.computing.dundee.ac.uk/staff/kedw


7


Sadek BOUROUBI, Engel’s Conjecture, 20th European Conference On Orerational Research and the Management of Electronic Services, EUROXX, Rodos, Grèce, 4-7 Juillet 2004.


http://www.aegean.gr/environment/energy/mcda


8


Sadek BOUROUBI, Bell’s numbers in the Alekseev inequality, 20th British Combinatorial Conference, 20th BCC, University of Durham, Grande Bretagne, 10-15 Juillet 2005.


http://www.mcs.open.ac.uk/bcc2005


9


Sadek BOUROUBI, On the poset of the partitions of an integer, European Conference on Operational Research, EUROXXI, Reykjavik, Island, 2-5 Juillet 2006.


http://www.euro21.fr/actualites/article/coll


10


Sadek BOUROUBI, Nesrine BENYAHIA TANI, Sur le poset des partitions d’un entier, Colloque sur l’Optmisation et les Systèmes d’Information, COSI’06, USTHB, Alger, Algérie, 11-13 Juin 2006. http://www.isima.fr/cosi/


11


Sadek BOUROUBI, Abdelmadjid Boukra et Mohamed Ahmed Nacer, Selection of views to materialize in data warehouse. A hybrid solution, Colloque sur l’Optmisation et les Systèmes d’Information, COSI’06, USTHB, Alger, Algérie, 11-13, Juin 2006. http://www.isima.fr/cosi/


12


Sadek BOUROUBI, Abdelmadjid BOUKRA et Mohamed AHMED NACER, Selection of views to materialize in data warehouse. A hybrid solution, First Workshop and Tutorial on Metaheuristics, META’06, El Hammamet, Tunisie, 2–4 Novembre 2006


13


Sadek BOUROUBI, Integer partitions and convexity, British Combinatorial Conference, 21th BCC, University of Durham, Grande Bretagne, 8-13 Juillet 2007.


http://www.dur.ac.uk/matthew.johnson2/bcc2007


14


Sadek BOUROUBI, Optimization problem of the architecture of the tele-exploitation system of the gas transport network, NonConvex Porgramming, NCP’07, Rouen, France, 17-21 Décembre 2007. http://www.ncp07.insa-rouen.fr/


15


Sadek BOUROUBI, Zahra YAHI, Autour de la conjecture de Konrad Engel, 6ième Rencontre sur l’Analyse Mathématique et ses Applications, RAMAVI, Tizi-Ouzou, Alger, Algérie, 26-28 avril 2008.


http://www.andru.gov.dz/analyseMAT.htm


16


Sadek BOUROUBI, Nesrine BENYAHIA TANI, Some Proprieties of the poset of partitions of an integer, Relations, Ordres and Graphs : Interaction with Computer Science, ROGICS’08Mahdia, Tunisie, 12-17 Mai 2008.


http://www.site.uottawa.ca/~lrakotom/rogics2


17


Sadek BOUROUBI, Sur Les partitions d’un entier en entiers consécutifs, Relations, Ordres and Graphs : Interaction with Computer Science, ROGICS’08, Mahdia, Tunisie, 12 -17 Mai 2008.


http://www.site.uottawa.ca/~lrakotom/rogics2


18


Sadek BOUROUBI, Optimization of the response time in a data warehouse by a cooperative approach of metaheuristics, International Conference on Metaheuristics and Nature Inspired Computing, META’08, Hammamet, 29-31 Octobre 2008, Tunisie.


http://www.lifl.fr/~jourdan/wiki/pmwiki.php


19


Sadek BOUROUBI, Louiza REZKALLAH, An hybrid cryptosystem based on the satisfiability problem, International Symposium on Operational Research, ISOR’08, Zeralda, 02-06 Novembre, Algérie.


http://www.laid3.usthb.dz/spip.php%3Farticle46


20


Sadek BOUROUBI, Nesrine BENYAHIA TANI, On a recursive construction of the Hasse Diagram of the poset of partitions of an integer, International Symposium on Operational Research, ISOR’08, Zeralda, 02-06 Novembre, Algérie. http://www.laid3.usthb.dz/spip.php%3Farticle46


21


Sadek BOUROUBI, Madjid BOUKRA, Selection of views to materialize in data warehouse : A cooperative approach, International Symposium on Operational Research, ISOR’08, Zeralda, 02-06 Novembre, Algérie.


http://www.laid3.usthb.dz/spip.php%3Farticle46


22


Sadek BOUROUBI, Connection between ordinary multinomial’s Fibonacci numbers, Bell polynomials and discrete uniform distribution, International Meeting of Difference Equations, Fibonacci sequences and Applications, DEFA, April 28-30, 2009, Meknes, Morocco.


http://www.extractor.prusac.com/sourcedocument.a


23


Sadek BOUROUBI, Integer Partitions into Arithmetic Progressions, EURO Conference, EUROXXIII, July 5–8, Bonn, Germany.


http://www.euro-2009.de/


24


Sadek BOUROUBI, A new cryptosystem based on the Traveling Slesman Problem, CIRO’10, Cinquième Conférence Internationale en Recherche Opérationnelle, Théorie et Applications, 24–27 Mai , 2010, Marrakech, Maroc.


http://www.chairecrsnglogistique.uqam.ca


25


Sadek BOUROUBI, A new cryptosystem based on the Traveling Slesman Problem, CIRO’10, Cinquième Conférence Internationale en Recherche Opérationnelle, Théorie et Applications, 24 – 27 Mai, 2010, Marrakech, Maroc.


http://www.chairecrsnglogistique.uqam.ca


26


Sadek BOUROUBI, A new hybrid cryptosystem based on the satisfiability problem, EURO Conference, EUROXXIV, July 11 –14–2010, Lisbon, Portugal.


http://www.euro2010lisbon.org/


27


Sadek BOUROUBI, Abdelmadjid BOUKRA, Protein spatial structure prediction using mating honey bee optimization, META’10, Djerba IslandEl Hammamet, Tunisia, 27–31 October 2010.


http://www.lifl.fr/META10/


28


Sadek BOUROUBI, A new hybrid cryptosystem based on the satisfiability problem, International Conference on Discrete Mathematics & Computer Science, DIMACOS’11, 5-8 May, 2011, Mohammedia, Maroc.


29


Fella Cherchali, Sadek BOUROUBI,Partition of a set : solution for the problem of sharing secret keys for the Vernam Cipher, ISOR’11, USTHB, Algiers, Algeria, May 30–June 02, 2011.


30


Zahra Yahi, Sadek BOUROUBI, On the unimodality of polynomials with nonnegative nondecreasing coefficients, ISOR’11, USTHB, Algiers, Algeria, May 30–June 02, 2011.


31


Nesrine Benyahia Tani, Sadek Bouroubi, Enumeration of the partitions of an integer into parts of a specified number of different sizes and especially two sizes, ISOR’11, USTHB, Algiers, Algeria, May 30–June 02, 2011.


32


Zahra Yahi, sadek Bouroubi, On the optimality average rank function in partition lattice, OPTIMIZATION 2011, July 24-27, Lisboa, Portugal.


33


Sadek Bouroubi, Nesrine Benyahia Tani, On arithmetic progression partitions, JIAA’2011, Journées Internationales d’Algèbre Appliquée, les 29, 30 Novembre et le 01 Décembre 2011, Msila, Algérie.


34


Sadek Bouroubi, Nesrine Benyahia Tani, On Quadrilaterals Inscribed in a Regular n-gon and Partitions of an Integer, INTEGERS CONFERENCE 2011, October 26 to October 29, University of West Georgia, Atlanta,USA.


35


Sadek Bouroubi, Ali Debbache, On balancing and cobalancing numbers, ECCO XXV, 25th Conference of European Chapter on Combinatorial Optimization, April 26–28, 2012, Antalya, Turkey.


36


Zahra Yahi, The Optimality Anrisymmerical Rank function in poset, EURO 2012, 8-11 Jully 2012 in Vilnius, Lithuania.


37


Zahra Yahi, Sadek Bouroubi, Some problems related to the average rank partition lattice of a set, ATIM’2012, 09-11 October 2012 at Badji Maokhtar-Annaba University, Annaba, Algeria.


38


Sadek Bouroubi, Ali Debbache, Some new identities around a balancing numbers, DIMACOS’12, International Conference on Discrete Mathematics and Computer Science, 13-17 November 2012, Beirut, Lebanon.


39


Sadek Bouroubi, Nesrine Benyahia Tani,Zahra Yahi, The Number of Non-isometric Quadrilaterals inscribed in a Regular n-gon, EURO26, International 26th EURO/INFORMS Conference, Rome, Italy, July 1-4, 2013.


40


Sadek Bouroubi, The Convexity of the partition function and the Bateman-Erdös constant, INTEGERS 2013 : The Erdös Centennial Conference in Combinatorial Number Theory,October 24-27, 2013, University of West Georgia, Carrollton, GA.


41


Zahra Yahi, Sadek BOUROUBI and Nesrine BENYAHIA TANI, The partitions of an integer and quadrilateralsinscribed in a regular n-gone, ICRAPAM2015, Istanbul Commerce University, 3-6 June 2015, Istanbul, Turkey.


42


Zahra Yahi, Sadek BOUROUBI, OA problem related to the integer partitions, 19th British Combinatorial Conference, University of Wales, IFORS, Barcelona, Spain, 30 July 13-18, 2014. http://www.ifors2014.org/staff/kedw


 

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