[Author] A. Mekler [Title] On the one- and two-polar Marcinkiewicz spaces [AMS Subj-class] 46E30 Spaces of measurable functions [Abstract] It is presented a reduction to one-another of two cases: the case of Marcinkiewicz (Lorenz, Orlicz) functional spaces on the unit interval and the case of those of spaces on the positive semiaxis. In this connection p-convexity of these spaces is considered. [Keywords] Marcinkiewicz Spaces, p-convexity [Comments] LaTeX, Russiam, 16 pp. [Contact e-mail] alexandre.mekler@o2online.de