Functions represented as sums of two quasicontinuous functions with a closed graph

被引:1
作者
Sieg, Waldemar [1 ]
机构
[1] Uniwersytet Kazimierza Wielkiego, Inst Matemat, PL-85072 Bydgoszcz, Poland
关键词
Functions with closed graph; Quasicontinuity;
D O I
10.1016/j.jmaa.2009.07.039
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let X = (X, d) be a metric space. We prove that if the set D(f) of discontinuity points of a function f : X -> R is "sufficiently small," then f can be decomposed into a sum of two quasicontinuous functions with a closed graph. (c) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:558 / 565
页数:8
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