BOUBETTA , RahmaBEDRANI , Yassine2025-02-162025-02-162024http://dspace.univ-skikda.dz:4000/handle/123456789/3963In this thesis , we study accretive matrices (with positive real parts) by generalizing the most important concepts and inequalities known associated with matrix monotone function and matrix convex function from positive matrices to matrices with positive real partenMasters degree Thesis