Diffeomorphisms, Anomalies and the Fefferman-Graham Ambiguity
A. Schwimmer, S. Theisen
Abstract
Using the Weyl transfomations induced by diffeomorphisms we set up a cohomological problem for the Fefferman-Graham coefficients. The cohomologically nontrivial solutions remove the ambiguity and give the nonlocal terms in the effective action responsible for the trace anomalies.
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