On the Borel Classes of Set-Valued Maps of Two Variables

On the Borel Classes of Set-Valued Maps of Two Variables

Using the Borel classification of set-valued maps, we present here some new results on set-valued maps which are similar to some of the well known theorems on functions due to Lebesgue and Kuratowski. We consider set-valued maps of two variables in perfectly normal topological spaces. It was proved...

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Bibliographic Details
Main Authors: Holá Ľubica, Kwiecińska Grażyna
Format: Article
Language:English
Published: Sciendo 2020-07-01
Series:Annales Mathematicae Silesianae
Subjects:
continuity
lower (upper) semicontinuous
lower (upper) quasi-continuous set-valued map
borel classes of set-valued maps
54c60
54c08
28b20
Online Access:http://www.degruyter.com/view/j/amsil.2020.34.issue-1/amsil-2020-0018/amsil-2020-0018.xml?format=INT

Internet

http://www.degruyter.com/view/j/amsil.2020.34.issue-1/amsil-2020-0018/amsil-2020-0018.xml?format=INT

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