2 papers
math.FA2019
Operator inequalities I. Models and ergodicity
Luciano Abadias, Glenier Bello-Burguet, Dmitry Yakubovich
We discuss when an operator, subject to a rather general inequality in hereditary form, admits a unitarily equivalent functional model of Agler type in the reproducing kernel Hilbe…
math.FA2017
Operator inequalities implying similarity to a contraction
Glenier Bello-Burguet, Dmitry Yakubovich
Let be a bounded linear operator on a Hilbert space such that \[ α[T^*,T]:=\sum_{n=0}^\infty α_n T^{*n}T^n\ge 0. \] where is a suitable ana…