Colouring copies of the rationals

25.09.2025 11:30 - 13:00

L. Gardiner (U of Cambridge, UK)

We demonstrate some results in the theory of infinite-exponent partition relations on linear orders and show that a certain relation of this type implies the failure of the choice principle \(\mathsf{KWP}_1\). We then answer a question of Fatalini about an analogous result in the setting of graphs.

This is joint work with Thilo Weinert and Jonathan Schilhan.

Organiser:

KGRC

Location:

SR 10, 1. Stock, Koling. 14-16, 1090 Wien