ON SOME MODIFICATION OF DARBOUX PROPERTY

被引:15
作者
Ivanova, Gertruda [1 ]
Wagner-Bojakowska, Elzbieta [2 ]
机构
[1] Acad Pomeraniensis, Inst Math, Ul Arciszewskiego 22d, PL-76200 Slupsk, Poland
[2] Univ Lodz, Fac Math & Comp Sci, Ul Stefana Banacha 22, PL-90238 Lodz, Poland
关键词
Darboux property; strong Swiatkowski property; Baire property; I-approximate continuity; quasi-continuous functions; porous set;
D O I
10.1515/ms-2015-0117
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We introduce some family of functions f : R -> R modifying Darboux property analogously as it was done in GRANDE, Z.: On a subclass of the family of Darboux functions, Colloq. Math. 117 (2009), 95-104, and changing approximate continuity with I-approximate continuity, i.e. continuity with respect to the I-density topology. We prove that our family is a strongly porous set in the space of Darboux functions having the Baire property and that each function from our family is quasi-continuous. (C) 2016 Mathematical Institute Slovak Academy of Sciences
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页码:79 / 88
页数:10
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