Banach Spaces Over Topological Semifields and Common Fixed Points
Beiträge zur Fixpunkttheorie nichtexpandierender Operatoren.
Best approximation and fixed points in strong -starshaped metric spaces.
Best approximation for nonconvex set in -normed space
Some existence results on best approximation are proved without starshaped subset and affine mapping in the set up of -normed space. First, we consider the closed subset and then weakly compact subsets for said purpose. Our results improve the result of Mukherjee and Som (Mukherjee, R. N., Som, T., A note on an application of a fixed point theorem in approximation theory, Indian J. Pure Appl. Math. 16(3) (1985), 243–244.) and Jungck and Sessa (Jungck, G., Sessa, S., Fixed point theorems in best...
Best approximation of coincidence points in metric trees
In this work we present results on fixed points, pairs of coincidence points and best approximation for ε-semicontinuous mappings in metric trees. It is a generalization of the similar properties of upper and almost lower semicontinuous mappings.
Best approximations, fixed points and parametric projections
If f is a continuous seminorm, we prove two f-best approximation theorems for functions Φ not necessarily continuous as a consequence of our version of Glebov's fixed point theorem. Moreover, we obtain another fixed point theorem that improves a recent result of [4]. In the last section, we study continuity-type properties of set valued parametric projections and our results improve recent theorems due to Mabizela [11].
Best approximations theorem for a couple in cone Banach space.
Best proximity point for proximal Berinde nonexpansive mappings on starshaped sets
In this paper, we introduce the new concept of proximal mapping, namely proximal weak contractions and proximal Berinde nonexpansive mappings. We prove the existence of best proximity points for proximal weak contractions in metric spaces, and for proximal Berinde nonexpansive mappings on starshape sets in Banach spaces. Examples supporting our main results are also given. Our main results extend and generalize some of well-known best proximity point theorems of proximal nonexpansive mappings in...
Best proximity points of cyclic -contractions on reflexive Banach spaces.
Best proximity sets and equilibrium pairs for a finite family of multimaps.
Bifurcation for the solutions of equations involving set valued mappings.
Birkhoff-Kellogg theorems on invariant directions for multimaps.
Borsuk-Ulam Sätze und Abbildungen mit kompakten Iterierten [Book]
Boundary value problems for first order multivalued differential systems
We present some existence results for boundary value problems for first order multivalued differential systems. Our approach is based on topological transversality arguments, fixed point theorems and differential inequalities.
Bourgin–Yang-type theorem for -compact perturbations of closed operators. I: The case of index theories with dimension property.
Branching of Solutions of a Class of Nonlinear Equations.
Browder-Fan fixed point theorem and related results
Browder-Krasnoselskii-type fixed point theorems in Banach spaces.
Browder's type strong convergence theorems for infinite families of nonexpansive mappings in Banach spaces.