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Valeur propre minimale d'une matrice de Toeplitz et d'un produit de matrices ...
This paper is essentially devoted to the study of the minimal eigenvalue $\lambda_{N,\alpha}$ of the Toepllitz matrice $T_N(\varphi_{\alpha})$ where... -
Constrained von Neumann inequalities, higher rank numarical range and applica...
This thesis joins in the field of operator theory. We are specially interested by the extremal operator S(Φ) defined by the compression of the unilateral shift S to...
