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math.GR2020★ 2 cited
Decomposition Theorems for Automorphism Groups of Trees
Max Carter, George A. Willis
Motivated by the Bruhat and Cartan decompositions of general linear groups over local fields, double cosets of the group of label preserving automorphisms of a label-regular tree o…
math.GR2020★ 1 cited
On free products of graphs
Max Carter, Stephan Tornier, George A. Willis
We define a free product of connected simple graphs that is equivalent to several existing definitions when the graphs are vertex-transitive but differs otherwise. The new definiti…