26 citations · 75 across the 27 of their papers we have counts for
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math.GR2020
Fixed points and stable images of endomorphisms for the free group of rank two
Laura Ciobanu, Alan D. Logan
We give an algorithm which computes the fixed subgroup and the stable image for any endomorphism of the free group of rank two , answering for a question posed by Stalli…
math.GR2020
The Post Correspondence Problem and equalisers for certain free group and monoid morphisms
Laura Ciobanu, Alan D. Logan
A marked free monoid morphism is a morphism for which the image of each generator starts with a different letter, and immersions are the analogous maps in free groups. We show that…
math.GR2020
The complexity of solution sets to equations in hyperbolic groups
Laura Ciobanu, Murray Elder
We show that the full set of solutions to systems of equations and inequations in a hyperbolic group, as shortlex geodesic words (or any regular set of quasigeodesic normal forms),…