The aim of this paper is to present the construction of a general family of C-algebras which includes, as a special case, the “quantum spacetime algebra” introduced by Doplicher, Fredenhagen, and Roberts. It is based on an extension of the notion of C-completion from algebras to bundles of algebras, compatible with the usual C-completion of the appropriate algebras of sections, combined with a novel definition for the algebra of the canonical commutation relations using Rieffel’s theory of strict deformation quantization. Taking the C-algebra of continuous sections vanishing at infinity, we arrive at a functor associating a C-algebra to any Poisson vector bundle and recover the original DFR-algebra as a particular example.

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