Space $\ S_\Omega,\ $ and its generalization for higher initial ordinal numbers was the very first example of this type, and it was introduced by the authors of the notion of bicompact spaces -- by P.S. Alexandrov and P.S. Urysohn in the their classical "Memoir on compact topological spaces".

The first publication of the paper was delayed by certain circumstances while it was accepted for publication in Poland by Fundamenta Mathematicae in 1923 but published years later elsewhere, in 1929, years after Urysohn's death. And the first translation into Russian appeared in 1950, in Trudakh... Soviet Academy of Sciences.

Space $\ S_\Omega,\ $ and its generalization for higher initial ordinal numbers was the very first example of this type, and it was introduced by the authors of the notion of bicompact spaces -- by P.S. Alexandrov and P.S. Urysohn in the their classic "Memoir on compact topological spaces".

The first publication of the paper was delayed by certain circumstances while it was accepted for publication in Poland by Fundamenta Mathematicae in 1923 but published years later elsewhere, in 1929, years after Urysohn's death. And the first translation into Russian appeared in 1950, in Trudakh... Soviet Academy of Sciences.