A Ricci flat pseudo-Riemannian metric on the tangent bundle of a Riemannian manifold
Tom 87 / 2001
                    
                    
                        Colloquium Mathematicum 87 (2001), 227-233                    
                                        
                        MSC: 53C50, 53C07.                    
                                        
                        DOI: 10.4064/cm87-2-8                    
                                    
                                                Streszczenie
We consider a certain pseudo-Riemannian metric $G$ on the tangent bundle $TM$ of a Riemannian manifold $(M,g)$ and obtain necessary and sufficient conditions for the pseudo-Riemannian manifold $(TM,G)$ to be Ricci flat (see Theorem 2).