Work

Secure two-dimensional tori are flat

Year: 2008
Type: preprint
Abstract: A riemannian manifold is secure if the geodesics between any pair of points in the manifold can be blocked by a finite number of point obstacles. Compact, flat manifolds are secure. A standing conjecture says that these are the only secure, compact riemannian manifolds. The conjecture claims, in particular, that a riemannian torus of any dimension is secure if and only if it is flat. We prove this for two-dimensional tori.
Language: English
Open Access status: green
OpenAlex ID: W196079728
Cites: 13
Cited by: 3
Related to: 10