Michael spaces and Dowker planks


  • Agata Caserta Seconda Università degli Studi di Napoli
  • Stephen Watson York University




Michael space, Michael function, NL property, Haydon plank


We investigate the Lindelöf property of Dowker planks. In particular, we give necessary conditions such that the product of a Dowker plank with the irrationals is not Lindelöf. We also show that if there exists a Michael space, then, under some conditions involving singular cardinals, there is one that is a Dowker plank.


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Author Biographies

Agata Caserta, Seconda Università degli Studi di Napoli

Dipartimento di Matematica

Stephen Watson, York University

Department of Mathematics and Statistics


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How to Cite

A. Caserta and S. Watson, “Michael spaces and Dowker planks”, Appl. Gen. Topol., vol. 10, no. 2, pp. 245–267, Oct. 2009.