A technique to study the behavior of zeros of orthogonal polynomials

**Hora de inicio:** 12:00. **Hora de fin:** 13:00.

In this talk we discuss the behaviour of the zeros of

polynomials orthogonal with respect to the Uvarov perturbation of a

positive Borel measure and certain discrete Sobolev inner product. The

behavior of their zeros is analyzed in terms of their dependence on the

parameters that determine the intensity of the perturbation.