搜索结果: 1-5 共查到“代数学 b-metric spaces”相关记录5条 . 查询时间(0.062 秒)
Injective hulls of certain discrete metric spaces and groups
Injective hulls certain discrete metric spaces and groups Group Theory
2011/9/23
Abstract: Injective metric spaces, or absolute 1-Lipschitz retracts, share a number of properties with CAT(0) spaces. Isbell showed that every metric space X has an injective hull E(X). We prove that ...
Subgroups of isometries of Urysohn-Katetov metric spaces of uncountable density
Subgroups of isometries of Urysohn-Katetov metric uncountable density
2011/1/18
According to Katˇetov (1988), for every infinite cardinal m satisfying m n ≤ m for all
n < m, there exists a unique m-homogeneous universal metric space Um of weight m.
Moving closer: contractive maps on discrete metric spaces and graphs
Moving closer discrete metric spaces and graphs
2010/11/23
We consider discrete metric spaces and we look for non-constant contractions. We introduce the notion of contractive map and we characterize the spaces with non-constant contractive maps. We provide s...
A General Fixed Point Theorem for Weakly Compatible Mappings in Compact Metric Spaces
compact metric space compatible mappings of type (A) compatible mappings of type (P) compatible mappings weakly compatible mappings implicit relation
2010/3/1
A general fixed point theorem for weakly compatible mappings satisfying an implicit relation in compact metric spaces is proved generalizing the results by [1],[3],[13],[14] and others.
Common Fixed Point Theorems for Fuzzy Mappings in Quasi-Pseudo-Metric Spaces
Fuzzy mapping Fixed point Quasi-pseudo-metric Left K-sequentially complete Right K-sequentially complete
2010/2/26
In this paper, we obtain some common fixed point theorems for pairs of fuzzy mappings in left K-sequentially complete quasi-pseudo-metric spaces and right K-sequentially complete quasi-pseudo-metric s...