Investigations on weak versions of the alster property in bitopological spaces and selection principles

EYSEN A. E., ÖZÇAĞ S.

Filomat, cilt.33, sa.14, ss.4561-4571, 2019 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 33 Sayı: 14
  • Basım Tarihi: 2019
  • Doi Numarası: 10.2298/fil1914561e
  • Dergi Adı: Filomat
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4561-4571
  • Anahtar Kelimeler: Almost (weakly) Menger, Almost Alster property, Bitopological space, Productively almost (weakly) Lindelöf, Selection principle, Weakly Lindelöf
  • Trakya Üniversitesi Adresli: Hayır

Özet

We investigate the relationships among the weaker forms of the properties “Menger”, “Alster” and “Lindelöf” in bitopological spaces. We give some counterexamples to show the differences between these properties. Further we introduce the weak versions of the Alster property in terms of selection principles and obtain some of their topological properties.