"There are severalresearchmethods but stillsolvingproblems of global optimization problemremains open. They are extremelydifficult to solveuntreatable and without a minimum assumptionsthatshouldberequireddepending on the ...

In this thesis, we focus on the differential equations of fractional order systems exhibiting chaotic dynamics. Particular attention has been paid to a nonlinear system of fractional differential equations modeling the ...

This thesis is devoted mainly to the study of spectral analysis of random fields, which based on the Fourier analysis and wavelet analysis. Among the numerous random fields in the literature, we have chosen to explore a ...

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 ...

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 ...