3 papers
math.FA2025
Composition operators on weighted modulation spaces
Héctor Ariza, Carmen Fernández, Antonio Galbis
We study composition operators whose symbols are suitable perturbations of the identity and which act between different weighted modulation classes. We consider both modulation spa…
math.FA2025
Topologizability and related properties of the iterates of composition operators in Gelfand-Shilov classes
Angela A. Albanese, Héctor Ariza
We analyse the behaviour of the iterates of composition operators defined by polynomials acting on global classes of ultradifferentiable functions of Beurling type which are invari…
math.FA2024
Iterates of composition operators on global spaces of ultradifferentiable functions
Héctor Ariza, Carmen Fernández, Antonio Galbis
We analyze the behavior of the iterates of composition operators defined by polynomials acting on global classes of ultradifferentiable functions of Beurling type and being invaria…