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math.GR2012
Classes of Groups Generalizing a Theorem of Benjamin Baumslag
Laura Ciobanu, Ben Fine, Gerhard Rosenberger
In [BB] Benjamin Baumslag proved that being fully residually free is equivalent to being residually free and commutative transitive (CT). Gaglione and Spellman [GS] and Remeslennik…
math.GR2012
The Surface Group Conjecture: Cyclically Pinched and Conjugacy Pinched One-Relator Groups
Laura Ciobanu, Ben Fine, Gerhard Rosenberger
The general {\bf surface group conjecture} asks whether a one-relator group where every subgroup of finite index is again one-relator and every subgroup of infinite index is free (…