Doctorat (Mathématiques): Recent submissions

  • Théorie des valeurs extrêmes 
    Bahi, Oussama; Dakhmouche, Maghlaoui (Université Frères Mentouri - Constantine 1, 2019-07-08)
    This work is intended as a contribution to the univariate statistics of extreme values and its applications to the calculation of risk. The purpose of this dissertation is to take a deep look at the statistical techniques ...
  • Estimation non paramétrique du mode conditionnel dans un modèle de censure. 
    Aouicha, Lamia; Messaci, Fatiha (Université Frères Mentouri - Constantine 1, 2019-06-13)
    In this thesis, we are interested in the nonparametric estimation of the conditional density and the conditional mode, in a twice censorship model. This means that the response variable Y is right censored by a variable R ...
  • Étude et analyse des problèmes électro-élastiques avec frottement. 
    Hacene-Chaouche, Soumeya; Dalah, Mohamed (Université Frères Mentouri - Constantine 1, 2019-05-05)
    In second is electro-viscoelastic problem which modeling the antiplane shear deformation of a cylinder in frictional contact with a foundation. The process this thesis, we study two problems, the first is electro-elastic ...
  • Systèmes dynamiques chaotiques 
    Bououden, Rabah; Abdelouahab, Mohammed-Salah (Université Frères Mentouri - Constantine 1, 2019-05-02)
    This thesis focuses on chaotic discrete dynamical systems. A detailed study on the notions of discrete dynamical systems such as the notion of stability, bifurcations and chaos are available in this thesis. In this thesis ...
  • Application de la sentinelle au systeme dynamique de la desertification. 
    Kaarer, Ines; Ayadi, Abdelhamid (Université Frères Mentouri - Constantine 1, 2018-12-10)
    This work is devoted to find, among all the bounded operators B, the one which gives a maximal controllability, in the sense that the operator image Hu=∫S(T-s)Bu(s)ds is maximal in the state space, following the inclusion ...
  • Estimation non paramétrique dans un modèle de censure et de dépendance. 
    Rouabah, Nour El Houda; Nemouchi, Nahima (Université Frères Mentouri - Constantine 1, 2019-05-19)
    The study of existing work shows that many of the asymptotic results obtained in the context of nonparametric statistics for right censored observations are based on the properties of the Kaplan Meier estimator of the ...
  • Etude de systemes dynamiques chaotiques. Analyse et applications 
    Kesmia, Mounira; Boughaba, Soraya (Université Frères Mentouri - Constantine 1, 2018-12-13)
    This thesis is based on the rigorous application of the theory of nonlinear dynamics and chaos to cardiac electrophysiology and more precisely to the control of cardiac alternans with a control signal constructed from ...
  • Contrôle des systèmes dynamiques chaotiques. 
    Laouira, Widad; Hamri, Nasr-Eddine (Université Frères Mentouri - Constantine 1, 2018-11-29)
    The mathematical theory of control has undergone a very important development and its scope currently covers many fields, including industry, economics and biology. . . This thesis deals with the study of the control ...
  • Systèmes Dynamiques chaotiques et cryptographie 
    Berguellah, Nour Elhouda; Hamri, Nasr eddine (Université Frères Mentouri - Constantine 1, 2018-11-22)
    In this work we present two chaotic models used for secure transmission of a functional message which is the function sin ⍵t, without forgetting the role of synchronization mechanisms of chaotic systems to the success of ...
  • Résolutions de quelques équations différentielles fractionnaires sur l'espace d'Heisenberg. 
    Bekkar, Meneceur; Haouam, Kamel (Université Frères Mentouri - Constantine 1, 2018-10-25)
    This thesis is devoted to the study of the non‐existence problems of global solutions for some PDEs and partial differential systems with fractional derivatives with respect to time, the basic idea of proofs is based on ...
  • Sur les bialgèbres faibles et les algèbres de Hopf faibles. 
    Chebel, Zoheir; Makhlouf, Abdenacer (Université Frères Mentouri - Constantine 1, 2018-10-21)
    In this thesis, we study the structure of weak bialgebras and weak Hopf algebras. These structures appeared in Physics, in particular in renormalization in quantum fields theory and q-deformations of oscillator algebras. ...
  • حول الـ FC-زمر و الـ FNk-زمر في بعض فئات الزمر ذات النوع المنته 
    شلغا م, مراد; كرادة, محمد (Université Frères Mentouri - Constantine 1, 2018-11-04)
    The first axis consists of two parts, the first containing the definitions and characteristics of FC-groups. The second part showing the relationship between this class, the class of PE-groups and the problem of P. Erdös. ...
  • Chaos et synchronisation (généralisé) dans les systèmes dynamiques. 
    Gasri, Ahlem; Zeraoulia, Elhadj (Université Frères Mentouri - Constantine 1, 2018-07-12)
    In recent years, chaos synchronization has been widely explored and studied because of its potential applications, such as in secure communication, chemical reactions, biological systems, information science. Thereby, a ...
  • La théorie de la sentinelle et problème d’identification . 
    Sendel, Saida; Ayadi, Abdelhamid (Université Frères Mentouri - Constantine 1, 2018-03)
    The problems of identiÖcation consist to Önd the causes of a phenomenon on starting from an observation; the resolution of this problem is doing by an experimental measurements. In this work, we aim to estimate the shape ...
  • Systèmes dynamiques et chaos 
    Ouahabi, Rabiaa; Hamri, Nasr-Eddine (Université Frères Mentouri - Constantine 1, 2018-03-19)
    In this thesis we have addressed the problem of the control and the synchronization of the dynamic chaotic systems. This thesis is broken up into four parts. In the first part of the thesis we have given the definitions ...
  • Inférence statistique dans les équations différentielles stochastiques 
    Merahi, Fateh; Bibi, Abdelouahab (Université Frères Mentouri - Constantine 1, 2018-04-26)
    In this thesis, we are studying a class of continuous-time bilinear processes (COBL(1,1)) generated by some stochastic differential equations where we have investigate some probabilistic properties and statistical ...
  • L'évaluation des bornes du système hyper-chaotique de Lorenz-Haken. 
    Diar, Ahmed; Denche, Mohamed (Université Frères Mentouri - Constantine 1, 2018-02-21)
    The first part of this thesis is dedicated to the study a dynamic complex financial system, the boundedness of solutions of this system is concerned. We have obtained the ultimate bound for the system.Furthermore, its rich ...
  • Sur les techniques de modélisation des expériences numériques. 
    Azzizi, Norelhouda; Zaatri, Abdelouahab (Université Frères Mentouri - Constantine 1, 2017-07-13)
    In order to study any phenomenon and develop technological systems, researchers use certain experiments. However, the reduction in the number of experiments to be carried out with a view to inferring conclusions remains ...
  • Résolution des équations différentielles fractionnaires. 
    Tellab, Brahim; Haouam, Kamel (Université Frères Mentouri - Constantine 1, 2018-01-11)
    In this work we have studied the existence and non-existence of solutions of nonlinear fractional differential equations. For the study of the existence and uniqueness the fixed point theory has been applied and for ...
  • Sur les applications discrètes en dimension N, N>1. 
    Mammeri, Mohammed; Zeraoulia, Elhadj (Université Frères Mentouri - Constantine 1, 2017-12-14)
    This thesis has two main objectives: The first objective is to define sufficient conditions for the existence of bounded or unbounded orbits in the quadratic discrete map in 3-D. The second objective is to study some ...

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