Gallardo Gutiérrez, Eva AntoniaPartington, Jonathan R.2025-06-052025-06-0520250373-31141618-189110.1007/s10231-025-01560-5https://hdl.handle.net/20.500.14352/120983Rhaly operators, as generalizations of the Cesàro operator, are studied from the standpoint of view of spectral theory and invariant subspaces, extending previous results by Rhaly and Leibowitz to a framework where generalized Cesàro operators arise naturally.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal articlehttps://doi.org/10.1007/s10231-025-01560-5open accessCesàro operatorRhaly operatorInvariant subspaceSpectrumTerraced operatorHankel operatorContraction semigroupAnálisis funcional y teoría de operadores1202.01 Álgebra de Operadores