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Expansive homeomorphisms on non-Hausdorff spaces [PDF]

open access: green, 2016
Mauricio Achigar   +2 more
openalex   +1 more source

A Hausdorff HS-space which is not regular [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 1998
In this paper I disprove, with a counterexample, a theorem of H.J. Schmidt [6], which states that each Hausdorff HS-space is regular. M. Paoli and E. Ripoli [4] noted that the proof of this theorem is incorrect, but they left the statement open.
A. Le Donne
doaj  

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