2 papers
math.GT2022
Finite rigid sets in sphere complexes
Edgar A. Bering, Christopher J. Leininger
A subcomplex of a simplicial complex is strongly rigid if every locally injective, simplicial map is the restriction of a unique automorphism…
math.GR2018
A Criterion For Kolchin Subgroups Of Out(Fr)
Edgar A. Bering
This article provides a decidable criterion for when a subgroup of Out(Fr) generated by two Dehn twists consists entirely of polynomially growing elements, answering an earlier que…