Author： Aroca J.M. Kubyshin Y.
Publisher： Elsevier
ISSN： 0003-4916
Source： Annals of Physics, Vol.283, Iss.1, 2000-07, pp. : 11-56
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Abstract
The vacuum expectation value of the Wilson loop functional in pure Yang–Mills theory on an arbitrary two-dimensional orientable manifold is studied. We consider the calculation of this quantity for the Abelian theory in the continuum case and for the arbitrary gauge group and arbitrary lattice action in the lattice case. A classification of topological sectors of the theory and the related classification of the principal fibre bundles over two-dimensional surfaces are given in terms of a cohomology group. The contribution of
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