On free products of graphs
On free products of graphs
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发表时间:
2020
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通讯作者:
G. Willis
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作者:
Max Carter;Stephan Tornier;G. 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 definition is designed for the automorphism group of the free product to be as large as possible, and we give sufficient criteria for it to be non-discrete. Finally, we transfer Tits' classification of automorphisms of trees and simplicity criterion to free products of graphs.