2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/33398In this paper, we examine the homotopy classes of positive loops in Sp(2) and Sp(4). We show that two positive loops are homotopic if and only if they are homotopic through positive loops.26 pages, LaTex, 19 figures with psfig, submitted to Math. AnnalenDifferential Geometrytext