Il. Buchbinder et al., STRUCTURE OF THE ANOMALY IN THE CANONICAL QUANTIZATION OF BOSONIC STRINGS IN BACKGROUND FIELDS, Theoretical and mathematical physics, 108(2), 1996, pp. 1083-1092
We consider the anomaly problem in the generalized canonical quantizat
ion of a bosonic string interacting with background graviton and antis
ymmetric tensor fields. We derive an equation for the symbol of the an
omaly operator, find a solution to that equation, and establish a gene
ral form for the anomaly operator allowed by the quantization procedur
e.