Franco Pereira, Alba M.Shaked, Moshe2023-06-192023-06-192014-051572-312710.1016/j.stamet.2013.09.003https://hdl.handle.net/20.500.14352/33502Recently Nair and Sankaran (2013) listed some known characterizations of common aging notions in terms of the total time on test transform (TTT) function. They also derived some new characterizations. The purpose of this note is to add two characterizations of the decreasing percentile residual life of order alpha (DPRL(alpha)) aging notion in terms of the TTT function, and in terms of the observed TIT when X is observed.engjournal articlehttp://www.sciencedirect.com/science/article/pii/S1572312713000737http://www.sciencedirect.com/open access519.2Observed TTTIFRDFRReliability theoryConcave and convex distributionsEstadística matemática (Matemáticas)1209 Estadística