6 citations · 28 across the 16 of their papers we have counts for
Showing 2006 · math.DGShow all
2 papers · 2 filters
math.DG2006
Inflection points and double tangents on anti-convex curves in the real projective plane
Gudlaugur Thorbergsson, Masaaki Umehara
A simple closed curve in the real projective plane is called anti-convex if for each point on the curve, there exists a line which is transversal to the curve and mee…
math.DG2006★ 1 cited
Flat Surfaces with singularities in Euclidean 3-space
Satoko Murata, Masaaki Umehara
It is classically known that complete flat surfaces in Euclidean 3-space are cylinders over space curves. This implies that the study of global behaviour of flat surfaces requires…