“…A vast literature is dedicated to the problem (2), (3) and algorithms for its solving (see, e.g., [8,10,11,15,18,29,30,31,34,36,39]). In particular, in practice it can be useful to optimize a scaled function g(x) from (1) instead of the original objective function f (x) (see, e.g., [7,35,41]).…”