• Speaker: Dr Thomas Kalinowski, CARMA, The University of Newcastle
  • Title: The Erdos-Szekeres conjecture about points in convex position
  • Location: Room V205, Mathematics Building (Callaghan Campus) The University of Newcastle
  • Time and Date: 3:00 pm, Wed, 25th May 2016
  • Abstract:

    In 1935 Erdos and Szekeres proved that there exists a function f such that among f(n) points in the plane in general position there are always n that form the vertices of a convex n-gon. More precisiely, they could prove a lower and an upper bound for f(n) and conjectured that the lower bound is sharp. After 70 years with very limited progress, there have been a couple of small improvements of the upper bound in recent years, and finally last month Andrew Suk announced a huge step forward: a proof of an asymptotic version of the conjecture.
    I plan two talks on this topic: (1) a brief introduction to Ramsey theory, and (2) an outline of Suk's proof.

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