钦州学院学报
欽州學院學報
흠주학원학보
JOURNAL OF QINZHOU UNIVERSITY
2011年
3期
12-13
,共2页
度量空间%伪序列覆盖映射%(P)映射%π映射
度量空間%偽序列覆蓋映射%(P)映射%π映射
도량공간%위서렬복개영사%(P)영사%π영사
Metric spaces%Pseudo-sequence-covering maps%(P) -maps%π-maps
建立了度量空间的伪序列覆盖π的(P)映像的内在特征,即证明了X是度量空间的伪序列覆盖π的(P)映射下的像当且仅当X具有性质(P)的CS^*覆盖的点星网.
建立瞭度量空間的偽序列覆蓋π的(P)映像的內在特徵,即證明瞭X是度量空間的偽序列覆蓋π的(P)映射下的像噹且僅噹X具有性質(P)的CS^*覆蓋的點星網.
건립료도량공간적위서렬복개π적(P)영상적내재특정,즉증명료X시도량공간적위서렬복개π적(P)영사하적상당차부당X구유성질(P)적CS^*복개적점성망.
This paper establishes an internal characterization of pseudo-sequence-covering π (P) - images of metric spaces. Namely we show that X is a pseudo-sequence-covering π (P) - image of a metric space if and only if it has a point-star network consisting of CS ^* covers with the property (P) .