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10 Ekim 2014, 15:40 
İstanbul Analiz Seminerleri Asuman Güven Aksoy
In a paper published posthumously, P.S. Urysohn [3] constructed a complete,
separable metric space that contains an isometric copy of every complete separable metric
space; it is now referred to as the Urysohn universal space. In this talk, I examine various
convexity properties of this special universal space and show that it has a finite ball
intersection property even though the Urysohn universal space is not hyperconvex [2]. (This
is a joint work with Z. Ibragimov [1]).
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