Title of article :
UPPER and LOWER NA-CONTINUOUS MULTIFUNCTIONS
Author/Authors :
Yuksel, Saziye Selcuk University - Department of Mathematics, 42031 Konya, Turkey , Han Simsekler, Tugba Selcuk University - Department of Mathematics, 42031 Konya, Turkey , Kut, B. Selcuk University - Department of Mathematics, 42031 Konya, Turkey
Abstract :
The aim of this paper is to introduce a new class of continuous multifunctions, namely upper and lower na-continuous multifunctions, and to obtain some characterizations concerning upper and lower na-continuous multifunctions. The authors investigate the graph of upper and lower na-continuous multifunctions, and the preservation of properties under upper na-continuous multifunctions. Also, the relationship between upper and lower na-continuous multifunctions and some known types of continuous multifunctions are discussed.
Keywords :
α , open sets , δ , open sets , multifunctions , α , compact spaces , δ , connected
Journal title :
Hacettepe Journal Of Mathematics and Statistics
Journal title :
Hacettepe Journal Of Mathematics and Statistics
