We give a new theorem of handlebody decomposition for compact 3-manifolds with connected boundary. The decomposition type, given here, allows us to calculate with great facility a presentation of the fundamental group of a 3-manifold with connected boundary.
A new handlebody decomposition of 3-manifolds with connected boundary and their fundamental group / Cavicchioli, Alberto. - In: BOLLETTINO DELL'UNIONE MATEMATICA ITALIANA. B. - ISSN 0392-4041. - STAMPA. - 18-B:(1981), pp. 131-149.