On Upper and Lower Z-supercontinuous Multifunctions

  • Akdag, Metin (Cumhuriyet University, Science and Art Faculty Department of Mathematics)
  • 투고 : 2004.02.24
  • 발행 : 2005.06.23

초록

In this paper, we define a multifunction $F:X{\rightarrow}Y$ to be upper (lower) Z -supercontinuous if $F^{+}(V)(F^{-}(V))$ is z-open in X for every open set V of Y. We obtain some characterizations and several properties concerning upper (lower) Z-supercontinuous multifunctions.

키워드

참고문헌

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