P. Teyssandier, CONFORMAL TRANSFORMATIONS SINGLE OUT A UNIQUE MEASURE OF DISTANCE - COMMENT, Physical review. D. Particles and fields, 52(10), 1995, pp. 6195-6197
In a recent work, Cotsakis claims that for f(R) plus matter gravity th
eories the physical metric is not the original metric tensor g(mu nu)
but a conformally related one. It is shown here that the proposed argu
ment is fallacious.