An order on subsets of cone metric spaces and fixed points of set-valued contractions.
An Ulam stability result on quasi-b-metric-like spaces
In this paper a class of general type α-admissible contraction mappings on quasi-b-metric-like spaces are defined. Existence and uniqueness of fixed points for this class of mappings is discussed and the results are applied to Ulam stability problems. Various consequences of the main results are obtained and illustrative examples are presented.
Anosov theorem for coincidences on nilmanifolds
Suppose that L, L’ are simply connected nilpotent Lie groups such that the groups and in their lower central series have the same dimension. We show that the Nielsen and Lefschetz coincidence numbers of maps f,g: Γ∖L → Γ’∖L’ between nilmanifolds Γ∖L and Γ’∖L’ can be computed algebraically as follows: L(f,g) = det(G⁎ - F⁎), N(f,g) = |L(f,g)|, where F⁎, G⁎ are the matrices, with respect to any preferred bases on the uniform lattices Γ and Γ’, of the homomorphisms between the Lie algebras , ’ of...
Application of fixed point theorem to best simultaneous approximation in convex metric spaces
Applications of Brézis-Browder principle to the existence of fixed points and endpoint for multifunctions.
Applications of fixed point theorems in the theory of generalized IFS.
Approximate endpoints for set-valued contractions in metric spaces.
Approximate fixed point theorems for the class of almost S-KKM mappings in abstract convex uniform spaces.
Approximating common fixed points of families of quasi-nonexpansive mappings.
Approximating common fixed points of two asymptotically quasi-nonexpansive mappings in Banach spaces.
Approximating fixed points of nonexpansive and generalized nonexpansive mappings.
Approximating fixed points of nonexpansive mappings.
Approximating fixed points of nonexpansive mappings in hyperspaces.
Approximating fixed points of nonexpansive nonself mappings in CAT(0) spaces.
Approximating fixed points of some maps in uniformly convex metric spaces.
Approximation common fixed point of asymptotically quasi-nonexpansive-type mappings by the finite steps iterative sequences.
Approximation of a common random fixed point for a finite family of random operators.
Approximation von Fixpunkten
Area preserving twist homeomorphism of the annulus.
Assad-Kirk-type fixed point theorems for a pair of nonself mappings on cone metric spaces.