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We model the Chinese Rings puzzle by a group of rooted tree automorphisms. We use this example as an excuse to talk about iterated monodromy groups. The discussion naturally leads to the self-covering of the unit interval by the tent map, which then leads to a whole family of groups of intermediate growth (one of which is the well known Grigorchuk group). This is a joint work with Volodymyr Nekrashevych.

refreshments will be served ~ 15 min prior; to meet with the speaker, contact the host: Lucas Sabalka