On the subadditivity of Montesinos complexity of closed orientable 3-manifolds

Álvaro Lozano, Rubén Vigara

A filling Dehn sphere $\Sigma$ in a closed 3-manifold $M$ is a sphere transversely immersed in $M$ that defines a cell decomposition of $M$. Every closed 3-manifold has a filling Dehn s…