Abstract
The construction of principal bundles over a four dimensional torus is considered. The class of groups considered is SU(n)/Z n , and for this class the Pontrjagin class has even integer values.
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Communicated by R. Stora
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Nash, C. Gauge potentials and bundles over the 4-torus. Commun.Math. Phys. 88, 319–325 (1983). https://doi.org/10.1007/BF01213211
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DOI: https://doi.org/10.1007/BF01213211