Unramified nonspecial real space curves having many real branches and few ovals.
Johannes Huisman (2002)
Revista Matemática Complutense
Similarity:
Let C ⊆ P be an unramified nonspecial real space curve having many real branches and few ovals. We show that C is a rational normal curve if n is even, and that C is an M-curve having no ovals if n is odd.