Hector Alonzo Barriga-Acosta: Some combinatorics on the normality of the countable box product of the convergent sequence

Mathematical logic seminar – Mar 5 2019
Time: 3:30pm – 4:30 pm

Room: Wean Hall 8220

Speaker: Hector Alonzo Barriga Acosta
Universidad Nacional Autónoma de México

Title: Some combinatorics on the normality of the countable box product
of the convergent sequence

Abstract:

The normality of □ (ω + 1)^ω is a question raised in the 40’s (it is
known
that consistently this space is normal). Through the years many different
tecniques have been developed, but non of them have solved the question in
ZFC. We’ll take a look to a combinatorial point of view, given by Judy
Roitman, of this problem.

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