Borel classification via quasi-metrics
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Hans-Peter A. Künzi; Eliza Wajch
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Article
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1997
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Elsevier Science
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English
⚖ 366 KB
The paper concerns the problem of how Bord classes in a metrizable space X can be lowered if one replaces the original topology of X by the topology induced by the meUic max{p,p -t } where p is a compatible quasi-metric on X.