Topologies associated with Kuratowski-Painlevé convergence of closed sets

Abstract

[EN] The main purpose of this paper is to identify topologies on the closed subsets C(X) of a Hausdorff space X that are sequentially equivalent to classical Kuratowski-Painleve convergence K. This reduces to a study of upper topologies sequentially equivalent to upper Kuratowski-Painleve convergence K(+), where we are of course led to consider the sequential modification of upper Kuratowski-Painleve convergence. We characterize those miss topologies induced by a cobase of closed sets that are sequentially equivalent to K(+), with special attention given to X first countable. Separately in the final section, we revisit Mrowka's theorem on the compactness of Kuratowski-Painleve convergence.