Jonathan Verner: Coloring metric spaces

Dear all,

The seminar meets on Wednesday December 6th at 11:00 in the Institute of Mathematics CAS, Zitna 25, seminar room, 3rd floor, front building.

Program:
Jonathan Verner — Coloring metric spaces: A report from the oracle

“I will present a short and elegant argument, due to S. Shelah, showing how one can construct a metric space $X$ of size $2^\omega$ such that for any countable metric space  $K$ and any countable coloring of $X$ there is a monochromatic scaled copy of $K$ in $X$”.

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