A calculus for branched spine of 3-manifolds
arXiv:math/0403014 · doi:10.1007/s00209-005-0810-0
Abstract
We establish a calculus for branched spines of 3-manifolds by means of branched Matveev-Piergallini moves and branched bubble-moves. We briefly indicate some of its possible applications in the study and definition of State-Sum Quantum Invariants.
15 pages, 12 figures. Revised version, to appear in Mathematische Zeitschrift