2020/03/16 by Saji, Kentaro, Teramoto, Keisuke
#53A05 #53A55 #57R45 #Differential Geometry (math.DG) #FOS: Mathematics
paper · doi:10.48550/arxiv.2003.07256
We investigate behavior of principal curvatures and principal vectors near a non-degenerate singular point of the first kind of frontals. As an application, we extend the notion of Ribaucour transformations to frontals with singular points.