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math.CO2025
Cocompact unfolding trees
Roman Gorazd
This paper will show when a rooted path tree of a finite directed rooted graph has only finitely many orbits under the action of its undirected automorphism group (i.e. when it is…
math.RA2025
Embedding Higman-Thompson groups of unfolding trees into the Leavitt path algebras
Roman Gorazd
The isomorphism problem of regular Higman-Thompson groups was solved in arXiv:1006.1759, via embedding it into the Leavitt algebra. In this paper, we will expand these results to e…