3 papers
math.FA2026
Entire groups generated by fractional powers of operators
Rodrigo Barberán, Pedro J. Miana
Let be a power-bounded operator on a Banach space . We treat the sequence of polynomials such that the entire group generated by the fractional power op…
math.FA2026
Cesà ro-Hardy operators on : fine spectrum, weighted Koopman semigroups and invariant subspaces
Luciano AbadÃas, Alejandro Mahillo, Pedro J. Miana
In this paper we study boundedness and detailed spectral properties for the Cesà ro-Hardy operator and some generalizations in . The study employs -semigroup theory,…
math.FA2025
Two Koopman semigroups on discrete Lebesgue spaces
Pedro J. Miana
In this paper we are interested to connect Koopman semigroups in Lebesgue funcion spaces and -semigroups in Lebesgue sequence spaces for …