In this paper we investigate the existence and classification of couplings between Lie algebra bundles and tangent bundles. We first give a sufficient and necessary condition on the existence of coupling between Lie algebra bundle (LAB) and the tangent bundle; i.e., we define a new topology on the group of all automorphisms of the Lie algebra g, denoted by baea200f88e5">, and show that the tangent bundle TM can be coupled with the Lie algebra bundle L if and only if L admits a local trivial structure with structural group endowed with such new topology. Then we show that there is a bijection between Coupg(M) the set of all isomorphism classes of couplings (L,Ξ) and the set of isomorphism classes of g-bundles with structural group baea200f88e5">.
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