A technique for constructing examples
A theorem of Borsuk-Ulam type for multifunctions
A theorem of Meir-Keeler type revisited.
A theorem of Šarkovskii characterizing continuous maps of zero topological entropy
A theorem of Stone-Čech type, and a theorem of Tychonoff type, without the axiom of choice; and their realcompact analogues
A Theorem of the Closed Graph Type.
A theorem of the Hahn-Banach type and its applications
Let Y be a subgroup of an abelian group X and let T be a given collection of subsets of a linear space E over the rationals. Moreover, suppose that F is a subadditive set-valued function defined on X with values in T. We establish some conditions under which every additive selection of the restriction of F to Y can be extended to an additive selection of F. We also present some applications of results of this type to the stability of functional equations.
A theorem on coincidence point for a family of mappings.
A theorem on common fixed points of expansion type mappings in cone metric spaces.
A Theorem On Contraction Mappings
A theorem on contraction mappings.
A theorem on contractive mappings
A theorem on expansions into inverse systems of metric spaces
A theorem on mappings
A Theorem On Spaces 2X With The Compact-Open Topology
A theorem on spaces 2x with the compact-open topology.
A theorem on the common fixed point in locally convex spaces
A Theorem on the Extension of Measures in Uniform Spaces
A theorem on the weak topology of C(X) for compact scattered X
A theory of absolute proper retracts