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On a sharpened form of the Schauder fixed-point theorem
If K is a compact convex subset of a locally convex topological vector space X, we consider a continuous mapping f of K into X. A fixed-point theorem is proved for such a map f under the assumption that for a given continuous realvalued function p on K × X with p(x,y) convex in y and for each point...
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| Natura: | Artigo |
| Lingua: | Inglês |
| Pubblicazione: |
1977
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| Accesso online: | https://ncbi.nlm.nih.gov/pmc/articles/PMC432032/ https://ncbi.nlm.nih.gov/pubmed/16592465 |
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