Approximation relations on the posets of pseudometrics and of pseudoultrametrics
We show that non-trivial "way below" and "way above" relations on the posets of all pseudometrics and of all pseudoultrametrics on a fixed set $X$ are possible if and only if the set $X$ is finite.
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Format: | Article |
Language: | English |
Published: |
Vasyl Stefanyk Precarpathian National University
2016-06-01
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Series: | Karpatsʹkì Matematičnì Publìkacìï |
Subjects: | |
Online Access: | https://journals.pnu.edu.ua/index.php/cmp/article/view/1420 |