Ribaucour type Transformations for the Hessian One Equation Martínez López, Antonio Milán López, Francisco Tenenblat, Keti Ribaucour transformations Improper affine spheres Hessian one equation We extend the classical theory of Ribaucour transformations to the family of improper affine maps and use it to obtain new solutions of the Hessian one equation. We prove that such transformations produce complete, embedded ends of parabolic type and curves of singularities which generically are cuspidal edges. Moreover, we show that these ends and curves of singularities do no intersect. We apply Ribaucour transformations to some helicoidal improper affine maps providing new 3-parameter families with an interesting geometry and a good behavior at infinity. In particular, we construct improper affine maps, periodic in one variable, with any even number of complete embedded ends. 2015-09-30T11:18:12Z 2015-09-30T11:18:12Z 2015 journal article Martínez-López, A.; Milán López, F.; Tenenblat, K. Ribaucour type Transformations for the Hessian One Equation. Nonlinear Analysis: Theory, Methods and Applications, 112: 147–155 (2015). [http://hdl.handle.net/10481/37916] 0362-546X http://hdl.handle.net/10481/37916 10.1016/j.na.2014.09.013 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Elsevier