Comment on: "Stäckel and Eisenhart lifts, Haantjes geometry and Gravitation"
arXiv:2511.05765
Abstract
One of the oldest methods for constructing integrable Hamiltonian systems, proposed by Jacobi, recently is being presented as a novel Stäckel lift construction related with Haantjes geometry. It may cause some confusion.
Comment on arXiv: 2509.19950