0 and Fixed Point Property
Published in Michael Ruzhansky, Hemen Dutta, Advanced Topics in Mathematical Analysis, 2019
Veysel Nezir, Nizami Mustafa, Hemen Dutta
Before that result, Carothers et al. Carothers et al. (1996) in 1996 established the analogous result for nonreflexive subspaces of the Lorentz function space Lw,1(0, ∞). Even earlier, in 1991, Carothers et al. Carothers et al. (1991) showed the Lorentz Space Lw,1(μ) enjoys the weak-star fixed point property if (X, Σ, μ) is a σ-fine measure space; that is, if C is a weak-star compact convex subset of Lw,1(μ), then, every nonexpansive mapping on C has a fixed point.