$L^2$-index of the Dirac operator of generalized Euclidean Taub-NUT metrics

Sergiu Moroianu, Mihai Visinescu

We compute the axial anomaly for the Taub-NUT metric on $R^4$. We show that the axial anomaly for the generalized Taub-NUT metrics introduced by Iwai and Katayama is finite, althou…