Seminarium:
Topologia
Osoba referująca:
Arturo Martinez Celis (University of Wrocław)
Data:
wtorek, 30. Listopad 2021 - 17:00
Sala:
605
Opis:
A Lindelöf space X is Michael if it has a non-Lindelöf product with the
space of irrational numbers. The existence of these kinds of spaces using
only the standard axioms of ZFC is still unknown. We will look into some of
the combinatorics related to this problem and discuss its relationships
with Selective Ultrafilters.