"11320" . . . "PL - Polsk\u00E1 republika" . . . "2" . "We give several refinements of known theorems on Borel uniformizations of sets with %22large sections%22. In particular, we show that a subset B of [0,1]x[0,1], which is of a given additive Borel class and which has %22vertical sections%22 of positive Lebesgue measure, has a uniformization of the corresponding multiplicative Borel class."@en . "000278260400003" . "Fundamenta Mathematicae" . . "P(GA201/06/0018), P(GA201/06/0198), Z(MSM0021620839)" . "Borel classes of uniformizations of sets with large sections"@en . "Holick\u00FD, Petr" . "RIV/00216208:11320/10:10057561" . "selections; sets with large sections; uniformizations; Borel classes; Borel sets"@en . "[E5844C69CADA]" . "249141" . . . "0016-2736" . "1"^^ . "1"^^ . . "2010/207" . "Borel classes of uniformizations of sets with large sections" . . "We give several refinements of known theorems on Borel uniformizations of sets with %22large sections%22. In particular, we show that a subset B of [0,1]x[0,1], which is of a given additive Borel class and which has %22vertical sections%22 of positive Lebesgue measure, has a uniformization of the corresponding multiplicative Borel class." . . . . . . . "RIV/00216208:11320/10:10057561!RIV11-GA0-11320___" . "Borel classes of uniformizations of sets with large sections"@en . . "16"^^ . . . . . "Borel classes of uniformizations of sets with large sections" .