2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79073For a function algebra A we investigate relations between the following three topics: isomorphisms of singly generated A-modules, Morita equivalence bimodules, and `real harmonic functions' with respect to A. We also consider certain groups which are naturally associated with A. We illustrate the notions considered with several examples.Functional AnalysisClassical Analysis and ODEs46J10; 47D15text