Comment on the preprint arXiv:2501.17471 "Two-dimensional Calderon Problem and Flat Metrics" by V.A.Sharafutdinov

The notice provides some critical remarks on a paper (preprint) by V.A.Sharafutdinov. The remarks mainly concern Theorem 1.1 on determination of the Riemann surface from its Dirichlet-to-Neuman map, which is declared as one of the basic results of the paper.