Universal spaces for locally finite-dimensional and strongly countable-dimensional metrizable spaces
Universalité forte pour les sous-ensembles totalement bornés. Applications aux espaces
Un’osservazione su una sottoalgebra di
Upper quasi continuous maps and quasi continuous selections
The paper deals with the existence of a quasi continuous selection of a multifunction for which upper inverse image of any open set with compact complement contains a set of the form , where is open and , are from a given ideal. The methods are based on the properties of a minimal multifunction which is generated by a cluster process with respect to a system of subsets of the form .
Upper semicontinuous decompositions of spaces having bases of countable order
Useful properties of index pairs for upper semicontinuous multivalued dynamical systems.