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Gauge theories in noncommutative geometry (1201.3345v1)
Published 16 Jan 2012 in math-ph, hep-th, math.DG, and math.MP
Abstract: In this review we present some of the fundamental mathematical structures which permit to define noncommutative gauge field theories. In particular, we emphasize the theory of noncommutative connections, with the notions of curvatures and gauge transformations. Two different approaches to noncommutative geometry are covered: the one based on derivations and the one based on spectral triples. Examples of noncommutative gauge field theories are given to illustrate the constructions and to display some of the common features.
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