This thesis deals with methods for the weak solution of an antiplan electro viscoelastic contact problem with friction and with long-term memory. We present two variational formulations, noted PVviscoelastic and ...

This thesis is devoted to some results of existence and uniqueness of fixed points at the same time in the metric and normed framework with their applications. These results are illustrated by many examples and to exit the ...

The study of many engineering problems such as acoustics, electromagnetic, fluid mechanics, and quantum chemistry lead to partial differential equations in unbounded domains. Therefore, the design of numerical methods ...

Identi cation problems are consisting to nd the causes of a phenomenon from an obser-vation, the resolution of this problem is doing by an experimental measurement. We suggest -in this these- to study a class of problems ...

The aim of this thesis is to give a detailed analysis of the spectral properties of certain classes of operators de ned on various types of Banach spaces. Although di¢ cult and extre- mely complicated, the questions that ...

This thesis deals with fractional-order chaotic systems. The main highlight is on some basic differences between a fractional-order system and its integer order counterpart. Namely, stability conditions, existence of periodic ...

In this thesis the general problem is minimizing the C_{∞} norm of suitable affine mappings from B(H) to C_{∞} and B(H) → B(H).Using convex and differential analyses (Gateaux derivative) as well as input from operator ...

The object of our work is a study the consecutive k-out-of-n system and the consecutive k-out-ln parallel. Firstly, in the expressions and bounds of the reliability (R) consecutive k-out-of-n system appair the trem qk , ...