Stavre, P.; Klepp, F. C. Semi-Einstein spaces. (English) Zbl 0627.53035 Lucr. Semin. Mat. Fiz. 1985, No. 2, 43-46 (1985). In this paper semi-Einstein spaces are defined and a characteristic property, which separates these spaces from Einstein spaces, is given. Furthermore, the special case of a semi-Einstein space, which simultaneously also is an Einstein space, is studied. Reviewer: Z.Jankovský MSC: 53C25 Special Riemannian manifolds (Einstein, Sasakian, etc.) Keywords:Einstein spaces; semi-Einstein space PDFBibTeX XMLCite \textit{P. Stavre} and \textit{F. C. Klepp}, Lucr. Semin. Mat. Fiz. 1985, No. 2, 43--46 (1985; Zbl 0627.53035)