A comment on the paper ``Lower Bounds on the Energy Eigenvalues of Systems Containing Identical Particles''
Francesco Calogero, Carlo Marchioro · Journal of Mathematical Physics · 1974
It is pointed out that the extension by Yeh [J. Math. Phys. 13, 227 (1972)] of the result by Calogero and Marchioro [J. Math. Phys. 10, 562 (1969)] is invalid. Counterexamples are indicated; the fault hidden in the proof of the extended result is spotted.