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1997 | 154 | 3 | 275-293
Tytuł artykułu

Borel extensions of Baire measures

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Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
We show that in a countably metacompact space, if a Baire measure admits a Borel extension, then it admits a regular Borel extension. We also prove that under the special axiom ♣ there is a Dowker space which is quasi-Mařík but not Mařík, answering a question of H. Ohta and K. Tamano, and under P(c), that there is a Mařík Dowker space, answering a question of W. Adamski. We answer further questions of H. Ohta and K. Tamano by showing that the union of a Mařík space and a compact space is Mařík, that under "c is real-valued measurable", a Baire subset of a Mařík space need not be Mařík, and finally, that the preimage of a Mařík space under an open perfect map is Mařík.
Słowa kluczowe
Rocznik
Tom
154
Numer
3
Strony
275-293
Opis fizyczny
Daty
wydano
1997
otrzymano
1996-09-30
Twórcy
autor
  • Departamento de Matemáticas, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain, aldaz@ccuam3.sdi.uam.es
Bibliografia
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Typ dokumentu
Bibliografia
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Identyfikator YADDA
bwmeta1.element.bwnjournal-article-fmv154i3p275bwm
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