On upper and lower D*-supercontinuous multifunctions

Akdag M.

ACTA MATHEMATICA HUNGARICA, cilt.116, ss.35-45, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 116
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s10474-007-5269-5
  • Dergi Adı: ACTA MATHEMATICA HUNGARICA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.35-45
  • Sivas Cumhuriyet Üniversitesi Adresli: Hayır

Özet

We define a multifunction F: X -> Y to be upper (lower) D*-supercontinuous if F+(V) (F-(V)) is d*-open in X for every open set V of Y. We obtain some characterizations and several properties concerning tipper (lower) D*-supercontinuous multifunctions.