If $X$ is a topological space let $2^X$ denote the set of closed subsets. There are multiple topologies one may equip $2^X$ with (in particular, I have in mind the Vietoris, Fell and similar topologies which agree with the topology induced by the Hausdorff metric when $X$ is compact), and I have been trying to track down references to answer the following question: if $F:X\to Y$ is continuous then for which topologies on $2^X,2^Y$ is the induced map $F_\ast:2^X \to 2^Y$ given by $Z\mapsto \overline{F(Z)}$ continuous? If we are interested only in putting a topology on the space of compact subsets of $X,Y$ (denoted $K_X,K_Y$) then the induced map $F_\ast:K_X\to K_Y$ given by $Z\mapsto F(Z)$ is continuous with respect to the Vietoris topology, having a subbasis of sets of the form $$\mathcal{O}_C=\{Z\in K_X\;\mid\; Z\cap C=\varnothing\}\hspace{1cm} \mathcal{O}'_U=\{Z\in K_X\;\mid\; Z\cap U\neq\varnothing\}$$ for $C$ closed and $U$ open in $X$. However I have been unable to track down any clear references as to what happens in the more general case where we are concerned with all closed subsets. Is there a topology on $2^X$ (agreeing with the Hausdorff topology when $X$ is compact) for continuous maps between spaces induce continuous maps between their associated hyperspaces? Any examples or references would be greatly appreciated!