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Lonely points in ω*

Publikace na Matematicko-fyzikální fakulta |
2008

Tento text není v aktuálním jazyce dostupný. Zobrazuje se verze "en".Abstrakt

Inspired by the work of J. van Mill we define a new topological type-lonely points. We show that the question of whether these points exist in ωASTERISK OPERATOR is equivalent to finding a countable OHI, extremally disconnected, zero-dimensional space with a remote weak P-point.

We also present methods which allow us to find lonely points in a large subspace of ωASTERISK OPERATOR and show why known methods do not allow us to construct them in all of ωASTERISK OPERATOR.