Comments on 'A relation between average kinetic energy and mean-square radius in nuclei'

While for a selection of self-consistent field calculations, using Hartree-Fock and Bruckner-Hartree-Fock theories, Svenne (J. Phys. G.; 6:465 (1980)) finds that the average kinetic energy per particle in nuclei is inconsistent with the kinetic energy coming from the single-particle sum rule (Koopman's theorem), when the isomorphic model is considered the two kinetic energies become consistent. Here, 16O and 40Ca are taken as examples. (author)