-discrete decomposability of completely additive families
Page 1
Frolík, Zdeněk, Holický, Petr (1976)
Seminar Uniform Spaces
Marek Cúth, Martin Rmoutil (2013)
Czechoslovak Mathematical Journal
We prove a separable reduction theorem for -porosity of Suslin sets. In particular, if is a Suslin subset in a Banach space , then each separable subspace of can be enlarged to a separable subspace such that is -porous in if and only if is -porous in . Such a result is proved for several types of -porosity. The proof is done using the method of elementary submodels, hence the results can be combined with other separable reduction theorems. As an application we extend a theorem...
Б.Л. Будинас (1984)
Matematiceskij sbornik
А.В. Островский (1988)
Matematiceskij sbornik
В.Л. Левин (1978)
Sibirskij matematiceskij zurnal
И.И. Паровиченко (1989)
Matematiceskij sbornik
В.К. Захаров, А.В. Колдунов (1983)
Sibirskij matematiceskij zurnal
Page 1