Curvature and characteristic classes of compact pseudo- Reimannian manifold
Curvature and characteristic classes of compact pseudo- Reimannian manifold
Introduction.In the last three decades various authors have studied the relationships between curvatures and certain topological invariants such as characteristic classes of a compact Riemannian manifold.One of the earliest results was the Gauss-Bonnet formula [1], [6], which expresses the Euler-Poincaré characteristic of a compact orientable Riemannian manifold of even dimension …