Abstract
Let C be a rho-bounded, rho-closed, convex subset of a modular function space L-rho. We investigate the problem of constructing common fixed points for asymptotic pointwise nonexpansive semigroups of mappings T-t : C -> C, i.e. a family such that T-0(f) = f, Ts+t(f) = Ts o T-t (f), and rho(T(f) - T(g)) <= alpha(t)(f)rho(f - g), where lim sup(t ->infinity) alpha(t)(f) <= 1, for every f is an element of C.