YouTube recording: https://www.youtube.com/watch?v=nALiEDYterk

Please advertise this talk at your home institution. Anyone is welcome to attend! 

Time: Wednesday, Jan 24 at 3pm ET
Zoom: https://gatech.zoom.us/j/8802082683

Speaker: James Davies, University of Cambridge
Title: Odd distances in colourings of the plane

Abstract: We prove that every finite colouring of the plane contains a monochromatic pair of points at an odd integer distance from each other. The proof uses a spectral method.