[Theory] a talk of interest

[Alexander Razborov via Theory]

The following talk at the Math Colloquium tomorrow can be of interest to many on this list.

Date/time: 3/26, 3pm

Room: E202

Speaker: Rachel Greenfeld (Northwestern)

Title: Integer distance sets

Abstract: A set in the Euclidean plane is called an integer distance set if the distance between any pair of its points is an integer.  All so-far-known integer distance sets have all but up to four of their points on a single line or circle; and it had long been suspected, going back to Erdős, that any integer distance set must be of this special form. In a recent work, joint with Marina Iliopoulou and Sarah Peluse, we developed a new approach to the problem, which enabled us to make the first progress towards confirming this suspicion.  In the talk, I will discuss the study of integer distance sets, its connections with other problems, and our new developments.
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