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Description of some ultrafilters via I-ultrafilters

Citace: [] FLAŠKOVÁ, J. Description of some ultrafilters via I-ultrafilters. In Combinatorial and Descriptive Set Theory. 2008. s. 20 - 31., ISSN: 1880-2818
Druh: STAŤ VE SBORNÍKU
Jazyk publikace: eng
Anglický název: Description of some ultrafilters via I-ultrafilters
Rok vydání: 2008
Autoři: RNDr. Jana Flašková Ph.D.
Abstrakt EN: We give a description of several classes of ultrafilters on natural numbers in terms of I-ultrafilters. For example, we characterize Q-points as weak thin ultrafilters and P-points as (Fin x Fin)-ultrafilters.
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