https://dspace.univ-ouargla.dz/jspui/handle/123456789/8519 2026-04-11T16:32:32Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/24807 Titre: Existence and uniqueness for boundary value problems involving Caputo conformable derivative Auteur(s): REDJIL, MENNOUBIA Résumé: The main objective of this work is to study the Existence and uniqueness for boundary value problems involving Caputo conformable derivative with conditions of the RiemannLiouville conformable type by applying some fixed point theories Description: Departement of Mathematics 2020-01-01T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/24802 Titre: Existence and uniqueness results for boundary value problems with Riemann-Liouville fractional derivatives Auteur(s): SALHI, ICHRAK Résumé: The main objective in this work is to study Existence and uniqueness for boundary value problems with multiple orders of Riemann-Liouville fractional derivatives and integrals, by employing some fixed point theories Description: Department of Mathematics 2020-01-01T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/22587 Titre: Expander graphs Auteur(s): CHEIKH, Mohamed Résumé: This dissertation treats the notion of expander graphs; these are highly connected graphs which appeared first in computer sciences in connexion with constructing good networks, but stem in fact from deep pure mathematics. We focus on their construction via the Kazdan property (T) Description: Departement of mathematics 2019-01-01T00:00:00Z https://dspace.univ-ouargla.dz/jspui/handle/123456789/22137 Titre: Inégalité Golod-Shafarevich Auteur(s): Lakhchakheche, Maissa Résumé: Le but de ce travail est de révéler quelques des secrets de l’inégalité de GolodShafarevich dans le cas gradué et leurs composants, et comment a constribué efficacement à mettre fin pour plusieur problèmes et conjecteurs trés célèbre en mathématiques citer par exemple le problème de Kurosh-Levitzky Description: Département des Mathématiques 2019-01-01T00:00:00Z