Abstract
A consistency condition for global anomalies is expressed in terms of cocycles of homotopy groups and is used to characterise all possible global anomalies.
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Picken, R.F. Global anomalies and homotopy group cocycles. Lett Math Phys 14, 1–5 (1987). https://doi.org/10.1007/BF00403463
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DOI: https://doi.org/10.1007/BF00403463