(Springer international Publishing Ag, 2014) Ali, Muhammad Usman; Kamran, Tayyab; Karapinar, Erdal; Mathematics
In this paper, we introduce the notion of (alpha, psi, xi)-contractive multivalued mappings to generalize and extend the notion of alpha-psi-contractive mappings to closed valued multifunctions. We investigate the existence of fixed points for such mappings. We also construct an example to show that our result is more general than the results of alpha-psi-contractive closed valued multifunctions.
