Comment on "The separation of variables and bifurcations of first integrals in one problem of D.N.Goryachev" by Pavel E. Ryabov (Archive:1102.2588v1)
arXiv:1110.2846
Abstract
We prove that in the Ryabov paper an application of the geometric Kharlamov method to the Goryachev system yields noncommutative "new variables of separation" instead of the standard canonical variables of separation.
3 pages, LaTeX and AMS fonts