# Existence of Simple Closed Straightest Geodesics

There are at least three distinct simple closed quasigeodesics on convex polyhedra [Mat. Sb. (N.S.), 1949, 25(67) :2, 275–306 Quasi-geodesic lines on a convex surface Pogorelov].

Is the same true for straightest geodesics?

Straightest Geodesics:straightest_preprint.pdf

--Thanks, Bryan

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I assume by straightest geodesic you mean: has the same surface angle to either side at every point. Let the polyhedron $P$ be a doubly covered obtuse triangle $\triangle abc$. The path $abc$ is a straightest geodesic. It seems the other quasigeodesics guaranteed by Pogorelov's theorem must pass through vertices, such as that following the altitude through the obtuse vertex $c$. But this will not be straightest. The path $aba$ is a quasigeodesic, with less than $\pi$ to each side of every point, but it is not straightest.