Abstract
The spectral sequences method is employed to study the cohomology space of the Becchi–Rouet–Stora (BRS) operator, which describes the general coordinate transformations in a two‐dimensional polynomial Lagrangian field theory. A pure external gravitational model is considered. In the Fadeev–Popov charge‐one sector, two classes of elements are found: the first represents the ordinary trace anomalies, in the second the presence of the anomalies recently calculated by Bardeen and Zumino are pointed out

This publication has 10 references indexed in Scilit: