Closed mappings are open at a set
Closed mappings on complete metric spaces
Closed mappings which lower dimension
Closed retractions of Euclidean spaces
Closure-preserving covers in function spaces
It is shown that if admits a closure-preserving cover by closed -compact sets then is finite. If is compact and has a closure-preserving cover by separable subspaces then is metrizable. We also prove that if has a closure-preserving cover by compact sets, then is discrete.
Cluster sets of arbitrary functions in Euclidean spaces (Preliminary communication)
CM-selectors for pairs of oppositely semicontinuous multifunctions and some applications to strongly nonlinear inclusions.
CM-Selectors for pairs of oppositely semicontinuous multivalued maps with -decomposable values
We present a new continuous selection theorem, which unifies in some sense two well known selection theorems; namely we prove that if F is an H-upper semicontinuous multivalued map on a separable metric space X, G is a lower semicontinuous multivalued map on X, both F and G take nonconvex -decomposable closed values, the measure space T with a σ-finite measure μ is nonatomic, 1 ≤ p < ∞, is the Bochner-Lebesgue space of functions defined on T with values in a Banach space E, F(x) ∩ G(x) ≠ ∅...
Coarse dimensions and partitions of unity.
Gromov and Dranishnikov introduced asymptotic and coarse dimensions of proper metric spaces via quite different ways. We define coarse and asymptotic dimension of all metric spaces in a unified manner and we investigate relationships between them generalizing results of Dranishnikov and Dranishnikov-Keesling-Uspienskij.
Cofinal families in certain function spaces
Coincidence and fixed point theorems for nonlinear hybrid generalized contractions
In this paper we first prove some coincidence and fixed point theorems for nonlinear hybrid generalized contractions on metric spaces. Secondly, using the concept of an asymptotically regular sequence, we give some fixed point theorems for Kannan type multi-valued mappings on metric spaces. Our main results improve and extend several known results proved by other authors.
Coincidence point theorems in certain topological spaces
In this paper, we establish some new versions of coincidence point theorems for single-valued and multi-valued mappings in F-type topological space. As applications, we utilize our main theorems to prove coincidence point theorems and fixed point theorems for single-valued and multi-valued mappings in fuzzy metric spaces and probabilistic metric spaces.
Coincidence points for contraction type maps.
Coincidence theorems for certain classes of hybrid contractions.
Coincidence theorems for contractive type multivalued mappings.
Collectionwise normality and absolute retracts
Collectionwise normality and extensions of continuous functions
Collectionwise normality and the extension of functions on product spaces
Colorings of Periodic Homeomorphisms
We calculate the exact value of the color number of a periodic homeomorphism without fixed points on a finite connected graph.
Comaximal graph of
In this article we study the comaximal graph of the ring . We have tried to associate the graph properties of , the ring properties of and the topological properties of . Radius, girth, dominating number and clique number of the are investigated. We have shown that and if then . We give some topological properties of equivalent to graph properties of . Finally we have proved that is an almost -space which does not have isolated points if and only if is an almost regular ring...