2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50667We construct geometrically a gerbe assigned to a connection on a principal SU(2)-bundle over an oriented closed 1-dimensional manifold. If the connection is given by the restriction of a connection on a bundle over a compact 2-manifold bounding the 1-manifold, then we have a natural object in the gerbe. The gerbes and the objects satisfy certain fundamental properties, e.g. gluing law.18 pages. We make some small correctionsHigh Energy Physics - Theorytext