Sadovskii's fixed point theorem without convexity
Building on the notion of convexity structures, the author proves an extension of \textit{B. N. Sadovskij}'s fixed point theorem for condensing maps [Funkt. Anal. Prilozh. 1, 74-76 (1967; Zbl 0165.49102)].
scientific article; zbMATH DE number 1910239
scientific article