Embeddings of non-simply-connected 4-manifolds in 7-space. I. Classification modulo knots

D. Crowley, A. Skopenkov

We work in the smooth category. Let $N$ be a closed connected orientable 4-manifold with torsion free $H_1$, where $H_q:=H_q(N;Z)$. Our main result is a complete readily calculable…