# Kostas Beros: Normal numbers and a completeness result in the difference hierarchy

When:
March 15, 2016 @ 2:30 pm – 3:30 pm
2016-03-15T14:30:00-10:00
2016-03-15T15:30:00-10:00
Where:
Keller Hall
2561-, 2573 The Mall St, Honolulu, HI 96822
United States

Speaker: Kostas Beros (U. North Texas)

Title: Normal numbers and a completeness result in the difference hierarchy

Abstract: In this talk I consider a natural set of real numbers, arising in ergodic theory, and show that it is Wadge-complete for the class of differences of $F_{\sigma\delta}$ sets. I will recall basic definitions and motivate my result with a discussion of related theorems from the past twenty years.

Logic seminar

Keller Hall 401