Comparability of Lower Attouch-Wets Topologies


Marco Rosa, Paolo Vitolo




Beer and Di Concilio [4] have given necessary and sufficient conditions for a two-sided Attouch--Wets topology to contain another on the hyperspace of non-empty closed subsets of a metrizable space as determined by metrics compatible with the topology. In the present paper, we characterize comparability of lower Attouch--Wets topologies as determined by compatible metrics.