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math.GR2013
The subgroup membership problem in amalgamated products of finitely generated free groups
Andrew Duncan, Elizaveta Frenkel
Stallings folding theory is modified, using double coset representatives, and to applied to the study of subgroups of amalgamated products of finite rank free groups. As a first ap…
math.GR2013★ 1 cited
Double cosets in free groups
Elizaveta Frenkel, Vladimir N. Remeslennikov
In this paper we study double cosets of finite rank free groups. We focus our attention on cancellation types in double cosets and their formal language properties.