Compactly convex sets in linear topological spaces

A convex subset $X$ of a~linear topological space is called{em compactly convex} if there is a~continuous compact-valuedmap $Phicolon Xoexp(X)$ such that$[x,y]subsetPhi(x)cupPhi(y)$ for all $x,yin X$. We provethat each convex subset of the plane is compactly convex. Onthe other hand, the space $IR^3...

Full description

Saved in:
Bibliographic Details
Main Authors: T. Banakh, M. Mitrofanov, O. Ravsky
Format: Article
Language:deu
Published: Ivan Franko National University of Lviv 2012-05-01
Series:Математичні Студії
Subjects:
Online Access:http://matstud.org.ua/texts/2012/37_2/161-173.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!