On -closed sets and their topology.
Ekici, Erdal, Jafari, Saeid (2010)
Acta Universitatis Apulensis. Mathematics - Informatics
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Displaying similar documents to “Weakly α-favourable measure spaces”
On -closed sets and their topology.
The general Fubini theorem in complete bornological locally convex spaces.
Haluška, Ján, Hutník, Ondrej (2010)
Banach Journal of Mathematical Analysis [electronic only]
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Covering of the null ideal may have countable cofinality
Saharon Shelah (2000)
Fundamenta Mathematicae
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We prove that it is consistent that the covering number of the ideal of measure zero sets has countable cofinality.
Algebras of Borel measurable functions
Michał Morayne (1992)
Fundamenta Mathematicae
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We determine the size levels for any function on the hyperspace of an arc as follows. Assume Z is a continuum and consider the following three conditions: 1) Z is a planar AR; 2) cut points of Z have component number two; 3) any true cyclic element of Z contains at most two cut points of Z. Then any size level for an arc satisfies 1)-3) and conversely, if Z satisfies 1)-3), then Z is a diameter level for some arc.
Weak variants of Martin's Axiom
J. Barnett (1992)
Fundamenta Mathematicae
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Examples exist of smooth maps on the boundary of a smooth manifold M which allow continuous extensions over M without fixed points but no such smooth extensions. Such maps are studied here in more detail. They have a minimal fixed point set when all transversally fixed maps in their homotopy class are considered. Therefore we introduce a Nielsen fixed point theory for transversally fixed maps on smooth manifolds without or with boundary, and use it to calculate the minimum number of...
Properties of forcing preserved by finite support iterations
Miroslav Repický (1991)
Commentationes Mathematicae Universitatis Carolinae
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We shall investigate some properties of forcing which are preserved by finite support iterations and which ensure that unbounded families in given partially ordered sets remain unbounded.
Existence of mild solutions for semilinear equation of evolution
Anna Karczewska, Stanisław Wędrychowicz (1996)
Commentationes Mathematicae Universitatis Carolinae
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The aim of this paper is to give an existence theorem for a semilinear equation of evolution in the case when the generator of semigroup of operators depends on time parameter. The paper is a generalization of [2]. Basing on the notion of a measure of noncompactness in Banach space, we prove the existence of mild solutions of the equation considered. Additionally, the applicability of the results obtained to control theory is also shown. The main theorem of the paper allows to characterize...