High Energy Physics - Theory
[Submitted on 14 Mar 1992
]
Title: Nonlocal regularisation and two-dimensional induced actions
Title: 非局部正则化和二维诱导作用
Abstract: We present an invariant regularisation scheme to compute two dimensional induced gauge theory actions, that is local in Polyakov's variables, but nonlocal in the original gauge potentials. Our method sheds light on the locality of this induced action, and leads to a straightforward proof that the $\varepsilon$-anomaly in $W_3$-gravity is completely given by the one loop term.
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