1. On a theorem of Holický and Zelený concerning Borel maps without $\sigma$-compact fibers Creator: Milewski, P. and Pol Format: bez média and svazek Type: model:article and TEXT Subject: Borel maps, $\sigma $-compact sections, and set-valued maps Language: English Description: The paper is concerned with a recent very interesting theorem obtained by Holický and Zelený. We provide an alternative proof avoiding games used by Holický and Zelený and give some generalizations to the case of set-valued mappings. Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public