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Uniformly continuous 1-1 functions on ordered fields not mapping interior to interior

Authors :
Mojtaba Moniri
Jafar S. Eivazloo
Source :
Iranian Journal of Numerical Analysis and Optimization, Vol 1, Iss 1 (2008)
Publication Year :
2008
Publisher :
Ferdowsi University of Mashhad, 2008.

Abstract

In an earlier work we showed that for ordered fields F not isomorphic to the reals R, there are continuous 1-1 unctions on [0, 1]F which map some interior point to a boundary point of the image (and so are not open). Here we show that over closed bounded intervals in the rationals Q as well as in all non-Archimedean ordered fields of countable cofinality, there are uniformly continuous 1-1 functions not mapping interior to interior. In particular, the minimal non-Archimedean ordered field Q(x), as well as ordered Laurent series fields with coefficients in an ordered field accommodate such pathological functions.

Details

Language :
English
ISSN :
24236977 and 24236969
Volume :
1
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Iranian Journal of Numerical Analysis and Optimization
Publication Type :
Academic Journal
Accession number :
edsdoj.fe60d925736b4022877a17d2d20015af
Document Type :
article
Full Text :
https://doi.org/10.22067/ijnao.v1i1.620