CHARACTERIZATIONS OF FUNCTIONS WITH STRONGLY α - CLOSED GRAPHS
M. CALDAS 1, S. JAFARI 2, R. M. LATIF 3, T. NOIRI 4 1. Departamento de Matematica Aplicada, Universidade Federal Fluminense, Rua Mario Santos Braga, s/n 24020-140, Niteroi, RJ BRASIL, e-mail: gmamccs@vm.u®.br
2. College of Vestsjaelland South Herresraede 11 4200 Slagelse, DENMARK, e-mail: jafari@stofanet.dk
3. Department of Mathematics and Statistics King Fahd University of Petroleum and Minerals Dhahran 31261 SAUDI ARABIA, e-mail: raja@kfupm.edu.sa
4. 2949-1 Shiokita-cho, Hinagu, Yatsushiro-shi, Kumamoto-ken, 869-5142 JAPAN, e-mail: t.noiri@nifty.com