Fixed-point theorems in infinite-dimensional spaces: Difference between revisions

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''Every upper semi-continuous (a fortiori continuous) correspondence that maps a compact convex subset of a locally convex space into itself with a closed graph and convex nonempty images has a fixed point.''
 
It can be seen as an application of Brouwer's fixed point theorem, although it has been discovered and proven independantly.
 
==References==