Closed Characteristics on Compact Convex Hypersurfaces in R 2n
Closed Characteristics on Compact Convex Hypersurfaces in R 2n
For any given compact C 2 hypersurface Σ in R 2n bounding a strictly convex set with nonempty interior, in this paper an invariant? n (Σ) is defined and satisfies? n (Σ) > [n/2] + 1, where [a] denotes the greatest integer which is not greater than a ∈ R. …