About me


About:

From September 2018 to August 2019, I will be a post-doc at Georg-August-Universität Göttingen primarily in residence at the École normale supérieure de Lyon.

Beginning August 2019, I will be a Zassenhaus Assistant Professor at the Ohio State University.

I received my PhD at Binghamton University in 2018.

CV (updated 10/2018)

rachel.skipper[at]ens[dash]lyon[dot]fr

skipper.rachel.k[at]gmail[dot]com

Upcoming talks and places you might run into me:

  • Universität Bonn, Topology Seminar, January 13-16, 2019
  • Université de Montpellier, Gaston Darboux Seminar, January 17-19, 2019
  • Alfréd Rényi Institute of Mathematics, Budapest, Hungary, Seminar and research visit, March 3-11, 2019
  • Algorithmic Problems in Group Theory, Dagstuhl Seminar, Schloss Dagstuhl, Germany, March 24-29, 2019
  • Conference on Cohomological Methods, Institute of Mathematics of the Polish Academy of Sciences, Warsaw, Poland, April 8-12, 2019

To be confirmed:

  • University of St Andrews, research visit, June 2-16, 2019
  • University of Oxford, Algebra Seminar, June 16-18, 2019
  • University of Lincoln, research visit, June 18-26, 2019
  • University of Cambridge, FCG seminar, June 28, 2019



Research interests: I work in geometric and combinatorial group theory. I have primarily work on projects related to groups acting on trees and boundaaries of trees (self-similar and automata groups, branch groups, groups in the extended Thompson family). My past projects in this area have included topics such as the congruence subgroup problem, topological finiteness properties, quasi-isometry invariants for infinite simple groups, bireversible automata, the space of subgroups and the Cantor Bendixson rank, commensurability growth, etc..

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