TY  - JOUR
AU  - Shobaky, E. El. 
AU  - Ali, Sahar Mohamed 
AU  - Ali, Montaser S. 
PY  - 2007
TI  - Abstract Fixed Points of Set-valued Mappings
JF  - Journal of Mathematics and Statistics
VL  - 3
IS  - 2
DO  - 10.3844/jmssp.2007.49.53
UR  - https://thescipub.com/abstract/jmssp.2007.49.53
AB  - We defined new concept of complete sequences of equivalence relations on a given abstract set on which no topology is considered, the concept of contraction mappings with respect to these sequences, proved the existence of a fixed point of a multivalued and in particular single valued mappings T on the given abstract set.