Bulg, J. Phys. 15, 311 (1988)

SCI

On the Question oi Gauge Harmonic Supergraphs Covanance in

Nguyen Anh Ky

We have shown that the regularization ot the harmdnic singularities (the u-singutarities), occurring in harmonic supergraphs, does not break the gauge covartance. Then the covariant graph (background fietd) method can be applied.

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