33 citations · 33 across the 4 of their papers we have counts for
Showing 2011Show all
2 papers · 1 filter
math.GN2011★ 33 cited
Quartet fixed point for nonlinear contraction
Erdal Karapinar
The notion of coupled fixed point is introduced in by Bhaskar and Lakshmikantham in [2]. Very recently, the concept of tripled fixed point is introduced by Berinde and Borcut [1].…
math.FA2011
A gap in the paper "A note on cone metric fixed point theory and its equivalence" [Nonlinear Anal. 72(5), (2010), 2259-2261]
Thabet Abdeljawad, Erdal Karapınar
There is a gap in Theorem 2.2 of the paper of Du (\cite{D_2010}). In this paper, we shall state the gap and repair it.