Abstract
Let B be a space which admits a numerable covering {U α :α ∈ Λ} with the property that every principal G-bundle over B is locally trivial with respect to the covering {U α }; let G(p) be the space of all equivariant automorphisms of p. In this setting the groups G(p) can be viewed as subgroups of some common group which depends only on the covering {U α } and G. We classify these groups G(p) up to conjugacy. In certain situations this leads to a characterization of the isomorphism classes of the groupsG(p).
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Morgan, C., Piccinini, R.A. Conjugacy classes of groups of bundle automorphisms. Manuscripta Math 63, 233–244 (1989). https://doi.org/10.1007/BF01168874
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DOI: https://doi.org/10.1007/BF01168874