The semi-global isometric embedding of surfaces with Gaussian curvature changing sign cleanly
The author gives a new method to solve the Gauss-Codazzi system, in which the linearized system is transformed into a partial differential equation of second order. Using this method, he solves the problem of semi-global isometric embedding of surfaces with Gaussian curvature changing sign cleanly.
scientific article; zbMATH DE number 6131929