Place: Bahen Centre (Room BA 2135)
Date: August 26th, 2016 (13:30-15:00)
Speaker: Ashutosh Kumar
Title: Avoiding rational distances in plane
Abstract: We show that every graph of countable coloring number on a set of reals has an everywhere non meager independent set. In particular, every set of points in the plane has an everywhere non meager subset no two of whose points are at a rational distance.