Seminário Análise Funcional e Aplicações 

29/12/2010, 15:00 — 16:00 — Sala P3.10, Pavilhão de Matemática
E. Hassan Zerouali, Université Mohammed V, Rabat, Morocco

Hankel operators and the moment problem

In this talk, we consider Hankel operators, associated with a complex valued function $f$ which is square integrable with respect to a given measure, in a Hilbert space of meromorphic functions related to a moment sequence $s$ . We investigate the boundedness and compactness of such operators in connection with the growth and the regularity of the sequence $s$.