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 İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 33 Konu: 14
  • Basım Tarihi: 2019
  • Doi Numarası: 10.2298/fil1914561e
  • Dergi Adı: FILOMAT
  • Sayfa Sayıları: ss.4561-4571

Özet

We investigate the relationships among the weaker forms of the properties "Menger", "Alster" and "Lindelof" 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.