• Nonparametric estimation of functional and censored data. 

  Leulmi, Farid; Leulmi, Sarra (Université Frères Mentouri - Constantine 1, 2023-01-19)

  In this thesis, we consider the problem of the nonparametric estimation of the regression function when the response variable is real and the regressor is valued in a functional space (space of infinite dimension), by using ...
• Analyse et application des systèmes discrets à dynamiques chaotiques. 

  Djaout, Assia; Hamaizia, Tayeb (Université Frères Mentouri - Constantine 1, 2022-07-19)

  In this work we presented the performances of a new class of evolutionary algorithms called chaotic optimization algorithm (COA). Proposed to solve nonlinear optimization problems with bounded variables by Caponetto et ...
• Régression non paramétrique et sélection de modèles par le moyen des réseaux de neurones artificiels. 

  Saadi, Faiza; Kahfouchi, S. (Université Frères Mentouri - Constantine 1, 2022-06-21)

  Artificial neural networks (ANN) are universal approximators that allow to express the correlation between input data and output data. Learning by ANN is based on the adaptation of the free parameters of the network by ...
• Estimation non paramétrique pour des données fonctionnelles et tronquées. 

  Boudada, Halima; Leulmi, Sara (Université Frères Mentouri - Constantine 1, 2022-06-15)

  The study of a link between two variables was and still a challenge for a lot of researchers in many fields of application and as in many of these fields appear functional data, we find many works have been devoted in this ...
• Etude de quelques problèmes de Cauchy inverses. 

  Benchikha, Abdelali; Denche, Mohamed (Université Frères Mentouri - Constantine 1, 2018-03-18)

  The goal of this work is the study of a class of inverse Cauchy problems. A new regularization method based on the well-known method of regularization by truncation of eliminating all high frequencies in the solution of ...
• Contributions aux problèmes variationnels et aux inclusions différentielles dans les espaces de Banach. 

  Bounekhel, Djalal; Kechkar, Nasserdine (Université Frères Mentouri - Constantine 1, 2021-11-03)

  The thesis consists in three chapters. In the first one, we state all needed definitions and concepts and some preliminary results. In Chapter 2, we study the existence of solutions for nonconvex quasi-variational problems ...
• Nombre de cycles limites des systèmes différentiels polynômiaux perturbés à centres linéaires. 

  Debz, Nassima; Berkane, Abdelhak; Boulfoul, Amel (Université Frères Mentouri - Constantine 1, 2022-02-03)

  In this thesis we study the limit cycles of two classes of ordinary differential syst`ems depending of small parameter. Using a theorem of first and second order averaging theory we transform the study of limit cycles of ...
• Autour des méthodes spectrales pour la résolution des équations aux dérivées partielles. 

  Lateli, Ahcene; Hamaizia, Tayeb; Boutagou, Amor (Université Frères Mentouri - Constantine 1, 2022-01-27)

  This thesis consists of four distinct but complementary chapters. The first chapter contains, on the one hand, some to reminders on Sobolev spaces and polynomial spaces with their associated norms, which constitute the ...
• Synchronisation et contrôle dans les systèmes dynamiques. 

  Zarour, Abdelwahab; Latrous, Chahla; Ouannas, Adel (Université Frères Mentouri - Constantine 1, 2021-07-19)

  This paper is concerned with the topic of chaos control in fractional maps. It presents two linear control laws to stabilize the dynamics of a new three-dimensional fractional Henon map. The chaos control has been achieved ...
• Modélisation spatiale à changements de régimes Markoviens. 

  Djafri, Houria; Kharfouchi, S. (Université Frères Mentouri - Constantine 1, 2021-04-05)

  This thesis deals with the problem of loss of important information and features in spatial data modeling by building a causal spatial model that can capture the various main characteristics of these data. After a through ...
• Estimation non-paramétrique dans un modèle de censure. 

  El-Hadj Ali, Thouria; Messaci, Fatiha; Bouzebda, Salim (Université Frères Mentouri - Constantine 1, 2021-07-01)

  In this thesis, we are concerned with the uniform in bandwidth consistency of kernel-type estimators of the regression function derived by modern empirical process theory, under weaker conditions on the kernel than previously ...
• Le théorème de Borsuk-Ulam pour les variétés de petite dimension. 

  Matmat, Chahrazade; Messaci, Fatiha; Blanchet, Christian (Université Frères Mentouri - Constantine 1, 2021-06-09)

  We study the Borsuk-Ulam theorem for the triplet (M, τ, Rn), where M is a compact, connected, 3-manifold equipped with a fixed-point-free involution τ. The largest value of n for which the Borsuk-Ulam theorem holds is ...
• Réseaux de neurones dans la statistique exploratoire et à l’aide de la décision. 

  Ayache, Assia; Rahmani, Fouad Lazhar; Kharfouchi, Soumia (Université Frères Mentouri - Constantine 1, 2021-04-08)

  Data analysis (also called exploratory data analysis) is a family of statistical methods whose main characteristics are that they are multidimensional and descriptive. These methods can also be considered as special neural ...
• Les modèles 2D MA à réponse impulsionnelle finie et à phase non minimale. 

  Beghriche, Hanane; Kharfouchi, Soumia (2021-04-09)

  Several fields of application such as: astronomy, acoustics, image and signal processing, etc., have used of higher order statistics. They played a crucial role in the identification of a non-minimal phase linear system. ...
• Systèmes dynamiques à temps discrets et applications en biologie 

  Djeddi, Kamel; Zéraoulia, El-hadj (Université Frères Mentouri - Constantine 1, 2021)

  In this work, we are interested in the study of discrete-time dynamical systems. We are present the results of theoretical and numerical study of a discrete-time chaotic systems. We begin our study by plotting attractors ...
• Quelques inégalités intégrales appliquées à certaines classes des équations aux dérivées partielles. 

  Boulares, Salah; Khellaf, Hassane (Université Frères Mentouri - Constantine 1, 2021-01-14)

  The aim of the present work is to give an exposition of the classical results about integral inequalities appeared in the mathematical researchs in recent years, and to establish some new integral inequalities, integrals ...
• Aspects chaotiques dans les systèmes dynamiques discrets. 

  Djafri, Nabila; Hamaizia, Tayeb (Université Frères Mentouri - Constantine 1, 2021-04-05)

  A new modified 2-D discrete chaotic system with rational fraction is introduced in this thesis ; it has more complicated dynamical structures than HÈnon map and Lozi map. Some dynamical behaviors, Öxed points, period-doubling ...
• Etude d’un problème aux limites non régulier. 

  Zekri, Abdelkrim; Berkane, Abdelhak (Université Frères Mentouri - Constantine 1, 2020-11-08)

  In this work, we are interested to the study of boundary values problems with integral boundary conditions. We obtain the existence and uniqueness of solutions with a priori estimate, and prove the Fredholm solvability of ...
• Stabilized numerical schemes for iterative solution of the generalized Stokes problem. 

  Chibani, Alima; Kechkar, Nasserdine (Université Frères Mentouri - Constantine 1, 2020-11-30)

  In this thesis, some novel discrete formulations for stabilizing the mixed nite element method Q1-Q0 (bilinear velocity and constant pressure approximations) are introduced and discussed for the generalized Stokes problem. ...
• Les plans bayésiens dans les essais expérimentaux. 

  Bourezaz, Houda; Merabet, Hayet (Université Frères Mentouri - Constantine 1, 2020-12-03)

  The work presented in this thesis relates to the methodological problems which arise in the context of experimental tests, we have exposed the methods of the sequential analysis setting up to use it in the evaluation of ...

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