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math.GR2021
Variations on the Post Correspondence Problem for free groups
Laura Ciobanu, Alan D. Logan
The Post Correspondence Problem is a classical decision problem about equalisers of free monoid homomorphisms. We prove connections between several variations of this classical pro…
math.GR2021
Formal conjugacy growth in graph products I
Laura Ciobanu, Susan Hermiller, Valentin Mercier
In this paper we give a recursive formula for the conjugacy growth series of a graph product in terms of the conjugacy growth and standard growth series of subgraph products. We al…