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In this paper we give an overview of recent results on analytic properties of matrix orthonormal polynomials. We focus our attention on the distribution of their zeros as well as on the asymptotic behavior of such polynomials under some restrictions about the measure of orthogonality.
In this paper we study a Jacobi block matrix and the behavior of the limit of its entries when a perturbation of its spectral matrix measure by the addition of a Dirac delta matrix measure is introduced.
BACKGROUND Outpatient surgery is a major public health policy issue. It is controversial for total thyroidectomy, which raises the question of hemithyroidectomy. The present study assessed our experience in outpatient hemithyroidectomy. OBJECTIVES To evaluate the rates of postoperative hematoma and unscheduled hospital admission. MATERIAL AND METHODS A… (More)