# Charlotte Scott Centre for Algebra

School of Mathematics & Physics, University of Lincoln

# Algebra seminar in Lincoln: talk by Dr Rachel Skipper

On the 20th of June 2019 Dr Rachel Skipper (Georg-August-Universität Göttingen and École Normale Supérieure de Lyon) visited Charlotte Scott Centre for Algebra and gave a talk  “On the Cantor–Bendixson rank of the Grigorchuk group and the Gupta–Sidki 3-group”. Her visit is supported by the London Mathematical Society Grant Scheme 2 (Visits to the UK) and by the Lincoln Institute of Advanced Studies.

Abstract: We study the Cantor–Bendixson rank for the space of subgroups of the Grigorchuk group and the Gupta–Sidki group. In particular, we show that for $G$ the Grigorchuk group or the Gupta–Sidki 3-group, the Cantor–Bendixson rank of $Sub(G)$ is $\omega$. This is a joint project with Phillip Wesolek.”

Callum Burrows, Sandro Mattarei, Rachel Skipper, Anitha Thillaisundaram, Simon Smith, Evgeny Khukhro

### One comment on “Algebra seminar in Lincoln: talk by Dr Rachel Skipper”

1. Evgeny Khukhro
June 23, 2019

Reblogged this on Maths & Physics News.

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This entry was posted on June 22, 2019 by in grants, research, Seminar, Visitors.