Erratum for “Feedback Stabilization of Isospectral Control Systems on Complex Flag Manifolds: Application to Quantum Ensembles” [Nov 07 2019-2028]

The results in the above titled paper (ibid., vol. 52, no. 11, pp. 2019-2028, Nov. 07), are contradicted slightly by those found in two others cited here. The results are explained here.