Antonio Martínez Celis Rodríguez: Some combinatorics related to the Michael space problem

Tuesday, October 18, 2022 17:00

Location: room C11-3.11

Speaker:
Antonio Martínez Celis Rodríguez

Title: Some combinatorics related to the Michael space problem

Abstract: A Lindelöf space is Michael if it has non-Lindelöf product with the Baire space. In this talk (series of talks?) we will review some of the combinatorics required to construct one of these spaces. The main goal is to show that the existence of a selective ultrafilter (plus \(\varepsilon\ge 0\)) is enough to construct a Michael space.