Lines of principal curvature near singular end points of surfaces in R3

2017-09-182017-09-182006GARCIA, Ronaldo Alves; SOTOMAYOR, Jorge. Lines of principal curvature near singular end points of surfaces in R3. Advanced Studies in Pure Mathematics, Tóquio, v. 43, p. 437-462, 2006.http://repositorio.bc.ufg.br/handle/ri/12482engAcesso AbertoLines of principal curvature near singular end points of surfaces in R3Artigo