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show/hide this revision's text 2 Added Shalen reference.

No. The Baumslag solitar groups $\langle a, b | ab^m a^{-1} = b^n \rangle$ are not 3-manifold groups when $m \neq n$.

See

Heil, Wolfgang H. Some finitely presented non-$3$-manifold groups. Proc. Amer. Math. Soc. 53 (1975), no. 2, 497--500.

(See also Peter Shalen, Three-Manifolds and Baumslag-Solitar groups Topology Appl. 110 (2001), 113--118)

show/hide this revision's text 1

No. The Baumslag solitar groups $\langle a, b | ab^m a^{-1} = b^n \rangle$ are not 3-manifold groups when $m \neq n$.

See

Heil, Wolfgang H. Some finitely presented non-$3$-manifold groups. Proc. Amer. Math. Soc. 53 (1975), no. 2, 497--500.