Quasi-nonexpansive multi-valued maps and selections
Random Fixed Point Theorems For Ultimately Compact Operators.
Random fixed point theorems on product spaces.
Random fixed points and approximations in random convex metric spaces.
Random fixed points for *-nonexpansive random operators.
Random periodic point and fixed point results for random monotone mappings in ordered Polish spaces.
Random three-step iteration scheme and common random fixed point of three operators.
Recurrent functions and semigroups.
Related fixed point theorems for three metric spaces.
Related fixed point theorems in fuzzy metric spaces.
Related fixed point theorems on two complete and compact metric spaces.
Related fixed points for set valued mappings on two metric spaces.
Related fixed points for set-valued mappings on two uniform spaces.
Remarks on a fixed-point theorem of Gerald Jungck.
Remarks on best approximation in R-trees
An R-tree is a geodesic space for which there is a unique arc joining any two of its points, and this arc is a metric segment. If X is a closed convex subset of an R-tree Y, and if T: X → 2Y is a multivalued mapping, then a point z for which [...] is called a point of best approximation. It is shown here that if T is an ε-semicontinuous mapping whose values are nonempty closed convex subsets of Y, and if T has at least two distinct points of best approximation, then T must have a fixed point. We...
Remarks on certain selected fixed point theorems.
Remarks on cone metric spaces and fixed point theorems of contractive mappings.
Remarks on coupled fixed point theorem in cone metric spaces
Remarks on extensions of the Himmelberg fixed point theorem.
Remarks on Lipschitzian mappings and some fixed point theorems.