Displaying similar documents to “On z◦ -ideals in C(X)”

Subcontinua of inverse limit spaces of unimodal maps

Karen Brucks, Henk Bruin (1999)

Fundamenta Mathematicae

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We discuss the inverse limit spaces of unimodal interval maps as topological spaces. Based on the combinatorial properties of the unimodal maps, properties of the subcontinua of the inverse limit spaces are studied. Among other results, we give combinatorial conditions for an inverse limit space to have only arc+ray subcontinua as proper (non-trivial) subcontinua. Also, maps are constructed whose inverse limit spaces have the inverse limit spaces of a prescribed set of periodic unimodal...

Ideals induced by Tsirelson submeasures

Ilijas Farah (1999)

Fundamenta Mathematicae

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We use Tsirelson’s Banach space ([2]) to define an F σ P-ideal which refutes a conjecture of Mazur and Kechris (see [12, 9, 8]).