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Title:The pointed version of Lipscomb's embedding theorem
Authors:ID Ivanšić, Ivan (Author)
ID Milutinović, Uroš (Author)
Files:URL http://www.imfm.si/preprinti/PDF/00854.pdf
 
Language:English
Work type:Not categorized
Organization:PEF - Faculty of Education
Abstract:Naj bo ▫$Sigma(tau)$▫ posplošena krivulja Sierpińskega. Le-ta se lahko na naraven način identificira z Lipscombovim prostorom ▫${cal J}(tau)$▫. Tedaj za poljuben ▫$n$▫-dimenzionalni metrični prostor ▫$X$▫ s težo ▫$tau$▫ obstaja vložitev prostora ▫$X$▫ v ▫$L_n(tau) subseteq Sigma(tau)^{n+1}$▫, kjer je ▫$L_n(tau)$▫ množica vseh točk z vsaj eno iracionalno koordinato. Tu dokažemo, da to vložitev lahko izberemo tako, da v določeni točki zavzema vnaprej podano vrednost. Pravzaprav je dokazan močnejši izrek, da so vrednosti vložitve lahko vnaprej podane v točkah poljubne končne množice.
Keywords:matematika, topologija, dimenzija pokrivanja, posplošena krivulja Sierpińskega, univerzalni prostor, Lipscombov univerzalni prostor, vložitev, razširitev, mathematics, topology, covering dimension, generalized Sierpiński curve, universal space, Lipscomb universal space, embedding, extension
Year of publishing:2002
Number of pages:str. 1-14
Numbering:Vol. 40, št. 854
PID:20.500.12556/DKUM-49366 New window
ISSN:1318-4865
UDC:515.127
COBISS.SI-ID:12235609 New window
NUK URN:URN:SI:UM:DK:BW2DZ96G
Publication date in DKUM:10.07.2015
Views:1232
Downloads:53
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Categories:Misc.
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Secondary language

Language:Unknown
Title:Točkovna verzija Lipscombovega vložitvenega izreka
Abstract:Let ▫$Sigma(tau)$▫ be the generalized Sierpiński curve, which is naturally identified with the Lipscomb's space ▫${cal J}(tau)$▫. Then for any ▫$n$▫-dimensional metric space ▫$X$▫ of weight ▫$tau$▫ there is an embedding of ▫$X$▫ into ▫$L_n(tau) subseteq Sigma(tau)^{n+1}$▫, ▫$L_n(tau)$▫ being the set of points having at least one irrational coordinate. Here we prove that this embedding may be choosen in such a way that its value at a certain point (the base point) is given in advance. In fact, we prove a stronger result that the values of the embedding may be given in advance at any finite set of points of ▫$X$▫.


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