On upper and lower D*-supercontinuous multifunctions


Akdag M.

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

  • Cilt numarası: 116
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s10474-007-5269-5
  • Dergi Adı: ACTA MATHEMATICA HUNGARICA
  • Sayfa Sayıları: ss.35-45

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.