2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/71680The aim of this paper is investigating of Orlicz spaces with exponential function and correspondence Orlicz norm: we introduce some new equivalent norms, obtain the tail characterization, study the product of functions in Orlicz spaces etc. We consider some applications: estimation of operators in Orlicz spaces and problem of martingales convergence and divergenceFunctional AnalysisProbability14J32text