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Friedl–Suciu's conjecture on nonprime quasiprojective 3-manifold groups
Friedl–Suciu's conjecture. If $\pi_1(N)$ is a quasiprojective group and $N$ is not prime, then $N$ is the connected sum of spherical $3$ -manifolds and manifolds which are either di…
Conjectureopen3-manifolds geometric-topology quasiprojective-groupsarXiv posted 2 days ago

Friedl–Suciu's conjecture on nonprime quasiprojective 3-manifold groups