On -porous sets in abstract spaces.
Zajíček, L. (2005)
Abstract and Applied Analysis
Similarity:
Zajíček, L. (2005)
Abstract and Applied Analysis
Similarity:
Martin Koc (2009)
Acta Universitatis Carolinae. Mathematica et Physica
Similarity:
Tišer, Jaroslav (2005)
Abstract and Applied Analysis
Similarity:
Valeriu Anisiu (1993)
Annales de la Faculté des sciences de Toulouse : Mathématiques
Similarity:
Zajíček, Luděk, Zelený, Miroslav (2005)
Abstract and Applied Analysis
Similarity:
Miroslav Zelený, Luděk Zajíček (2005)
Fundamenta Mathematicae
Similarity:
The main aim of this paper is to give a simpler proof of the following assertion. Let A be an analytic non-σ-porous subset of a locally compact metric space, E. Then there exists a compact non-σ-porous subset of A. Moreover, we prove the above assertion also for σ-P-porous sets, where P is a porosity-like relation on E satisfying some additional conditions. Our result covers σ-⟨g⟩-porous sets, σ-porous sets, and σ-symmetrically porous sets.