Abstract:
We investigate the category of regular coverings of a given smooth principal bundle. A covering map of one principal bundle to another principal bundle is understood as a morphism in the category of principal bundles consisting of covering maps of their structural groups, total spaces and bases. The main results are: the construction of an invariant of a regular covering, which is a subsequence of the homotopy sequence of the base bundle; the existence theorem of a covering with a given invariant; criteria for morphisms and isomorphisms; a theorem on the automorphism group of a given covering. Bibliography: 21 titles.
Keywords:
smooth manifold, principal bundle, covering, fundamental group.
Citation:
T. A. Gonchar, E. I. Yakovlev, “Coverings in the category of principal bundles”, Izv. Vyssh. Uchebn. Zaved. Mat., 2021, no. 4, 25–47; Russian Math. (Iz. VUZ), 65:4 (2021), 22–43