Generalization of perfectly continuous, regular set-connected and clopen functions

Ekici E.

ACTA MATHEMATICA HUNGARICA, cilt.107, ss.193-206, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 107 Konu: 3
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1007/s10474-005-0190-2
  • Dergi Adı: ACTA MATHEMATICA HUNGARICA
  • Sayfa Sayıları: ss.193-206

Özet

Noiri in 1984, Dontchev, Ganster and Reilly in recent years and Reilly and Vamanamurthy in 1983 introduced the notion of perfectly continuous, regular set-connected and clopen functions, respectively. The aim of this paper is to introduce the notion of a new class of functions which is called almost clopen functions including the classes of perfectly continuous, regular set-connected and clopen functions. Furthermore, properties of almost clopen functions are obtained and relationships among almost clopenness, perfect continuity, regular set-connectedness, clopenness and almost continuity are investigated.