Continuous Functions in Hashimoto Topologies and Their Algebraic Properties

被引:0
|
作者
Bartoszewicz, Artur [1 ]
Filipczak, Malgorzata [2 ]
Terepeta, Malgorzata [1 ,3 ]
机构
[1] Lodz Univ Technol, Inst Math, Ul Wolczanska 215, PL-90924 Lodz, Poland
[2] Univ Lodz, Fac Math & Comp Sci, Ul Stefana Banacha 22, PL-90238 Lodz, Poland
[3] Lodz Univ Technol, Ctr Math & Phys, Al Politech 11, PL-90924 Lodz, Poland
关键词
Hashimoto topology; H-continuity; s-ideal; Algebrability; Strong algebrability; Microscopic set; STRONG ALGEBRABILITY; SETS; SPACEABILITY;
D O I
10.1007/s00025-021-01488-1
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In the paper we consider the Hashimoto topologies on the interval [0, 1] as well as on R, which are connected with the natural topology on R and with some important and well known s-ideals in P( R). We study the families of continuous functions f : [0, 1] -> R with respect to the same Hashimoto topology H(I) (connected with the sigma-ideal I) on the domain and on the range of the considered functions. We show that inside common parts and differences of some such families we can find large (c-generated) free algebras. Some of constructed algebras appear dense in the algebra of the functions which are continuous in the usual sense.
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页数:18
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