Its topological charge can be computed as follows. ![]() The new total space is the gauge bundle of a center vortex. Glue the total space back together with a transition function which is a map from the cut circle to a representation of G. On a 2-dimensional space M a center vortex at a point x may be constructed as follows. ![]() Equivalently, their topological charge is an element of the fundamental group of this universal cover quotiented by its center.
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