On complete measurability of multifunctions defined on product spaces.
On convergence of successive approximations of some generalized contraction mappings
On De Blasi's differentiation theory for multifunctions
On determining sets for the class of somewhat continuous functions
On Extensions of Multivalued Mappings of Topological Spaces
On fixed point theorems for multifunctions in dendroids
On fixed points of set-valued directional contractions.
On generalized differential quotients of set-valued maps.
On generalized Hausdorff semicontinuity of multifunctions
On generalized implicit vector equilibrium problems in topological ordered spaces.
On monotone minimal cuscos
On multifunctions with closed graphs
The set of points of upper semicontinuity of multi-valued mappings with a closed graph is studied. A topology on the space of multi-valued mappings with a closed graph is introduced.
On multifunctions with convex graph
In questa Nota viene stabilita una caratterizzazione generale della semicontinuità inferiore delle multifunzioni, a grafico convesso, definite in sottoinsieme non vuoto, aperto e convesso di uno spazio vettoriale topologico e a valori in uno spazio vettoriale topologico localmente convesso. Sono poste in luce, poi, varie conseguenze di tale caratterizzazione.
On multivalued quotient mappings
On multivalued quotient mappings.
On points of lower and upper quasi-continuity of multivalued maps
On projection measurability of functions and multifunctions
On properties of approximate fibrations. I.
On quasicontinuity of multifunctions
On reflexive closed set lattices
For a topological space , let denote the set of all closed subsets in , and let denote the set of all continuous maps . A family is called reflexive if there exists such that for every . Every reflexive family of closed sets in space forms a sub complete lattice of the lattice of all closed sets in . In this paper, we continue to study the reflexive families of closed sets in various types of topological spaces. More necessary and sufficient conditions for certain families of closed...