2018/03/23 by Jaramillo, Jesus A., Donne, Enrico Le, Rajala, Tapio
#54C65 #54E40 #FOS: Mathematics #Functional Analysis (math.FA) #General Topology (math.GN) #Metric Geometry (math.MG)
paper · doi:10.48550/arxiv.1803.08744
We show that any continuous open surjection from a complete metric space to another metric space can be restricted to a surjection for which the domain has the same density character as the target. This improves a recent result of Aron, Jaramillo and Le Donne.