## Ein elementarer Zugang zur Leray-Schauder-Theorie.(German)Zbl 0377.47039

### MSC:

 47H10 Fixed-point theorems 46A19 Other “topological” linear spaces (convergence spaces, ranked spaces, spaces with a metric taking values in an ordered structure more general than $$\mathbb{R}$$, etc.) 54C60 Set-valued maps in general topology 55P05 Homotopy extension properties, cofibrations in algebraic topology
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