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Sigma-fragmentability and the property SLD in C(K) spaces

机译:C(K)空间中的Sigma易碎性和性质SLD

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摘要

We characterize two topological properties in Banach spaces of type C{K), namely, being σ-fragmented by the norm metric and having a countable cover by sets of small local norm-diameter (briefly, the property norm-SLD). We apply our results to deduce that C_p(K) is σ -fragmented by the norm metric when K belongs to a certain class of Rosenthal compacta as well as to characterize the property norm-SLD in C_p(K) in case K is scattered.
机译:我们在类型C {K)的Banach空间中表征了两个拓扑属性,即,被规范度量σ分割,并被一组小的局部规范直径(简称为属性规范SLD)覆盖。我们应用我们的结果来推论,当K属于Rosenthal Compacta的某一类时,C_p(K)被范数度量σ分割,并在K分散的情况下表征C_p(K)中的norm-SLD属性。

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