Fedosov manifolds with parallel symplectic Weyl curvature

Abstract

A classical 1977 result by Roter states that a Riemannian manifold of dimension at least four with parallel Weyl curvature must be locally symmetric or conformally flat. We establish Roter's theorem in the symplectic category: namely, a Fedosov manifold with parallel symplectic Weyl curvature must be locally symmetric or Weyl-flat.

arXiv comment11 pages; minor improvements and some remarks added