2 papers
math.FA2026
Disjointly universal inner functions
Özgur Martin, Dimitris Papathanasiou, Sibel Şahin
We characterize when two sequences of composition operators admit disjointly universal Blaschke products and singular inner functions. The characterizations we provide depend on ge…
math.FA2021
Disjoint and Simultaneously Hypercyclic Pseudo-Shifts
Nurhan Çolakoğlu, Özgür Martin, Rebecca Sanders
We characterize disjoint and simultaneously hypercyclic tuples of unilateral pseudo-shift operators on . As a consequence, complementing the results of Bernal a…