On the existence of solution of the equation and a generalized coincidence degree theory. II.
On the existence of solution of the equation and a generalized coincidence degree theory. I.
On the existence of solutions for a higher order differential inclusion without convexity.
On the existence of solutions of nonlinear infinite systems of parabolic differential-functional equations.
On the existence of solutions to some nonlinear integrodifferential equations with delays.
On the existence of the price equilibrium by different methods
We have given several proofs on the existence of the price equilibrium --- via variational inequality --- via degree theory and via Brouwer's theorems.
On the existence of unique common fixed points for certain classes of weakly compatible maps in normed linear space.
On the existence of ɛ-fixed points
In this paper we prove some approximate fixed point theorems which extend, in a broad sense, analogous results obtained by Brânzei, Morgan, Scalzo and Tijs in 2003. By assuming also the weak demiclosedness property we state two fixed point theorems. Moreover, we study the existence of ɛ-Nash equilibria.
On the existence result for system of generalized strong vector quasiequilibrium problems.
On the existence theorems of Kantorovich, Miranda and Borsuk.
On the fixed point index of non-compact mappings
On the fixed point property in direct sums of Banach spaces with strictly monotone norms
It is shown that if a Banach space X has the weak Banach-Saks property and the weak fixed point property for nonexpansive mappings and Y has the asymptotic (P) property (which is weaker than the condition WCS(Y) > 1), then X ⊕ Y endowed with a strictly monotone norm enjoys the weak fixed point property. The same conclusion is valid if X admits a 1-unconditional basis.
On the Fixed Point Set of Nonexpansive Order Preserving Maps.
On the fixed points of affine nonexpansive mappings.
On the fixed points of nonexpansive mappings in direct sums of Banach spaces
We show that if a Banach space X has the weak fixed point property for nonexpansive mappings and Y has the generalized Gossez-Lami Dozo property or is uniformly convex in every direction, then the direct sum X ⊕ Y with a strictly monotone norm has the weak fixed point property. The result is new even if Y is finite-dimensional.
On the fixed-point property of unital uniformly closed subalgebras of .
On the fixed-point set of a family of relatively nonexpansive and generalized nonexpansive mappings.
On the general minimax theorem
On the generalizations of Siegel's fixed point theorem.
In this paper, we establish a new version of Siegel's fixed point theorem in generating spaces of quasi-metric family. As consequences, we obtain general versions of the Downing-Kirk's fixed point and Caristi's fixed point theorem in the same spaces. Some applications of these results to fuzzy metric spaces and probabilistic metric spaces are presented.
On the homotopical classification of DJ-mappings of infnitely dimensional spheres