On the Topology of Riemann Spaces of Quasi-constant Curvature
Publications de l'Institut Mathématique, _N_S_46 (1989) no. 60, p. 183 .

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

We compute Betti numbers of certain Riemann spaces of $q$-constant curvature such as conformally flat hypersurfaces of elliptic-space-forms, subprojective spaces and para-Sasakian manifolds.
Classification : 53C20 53C40
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     author = {Sorin Dragomir and Renata Grimaldi},
     title = {On the {Topology} of {Riemann} {Spaces} of {Quasi-constant} {Curvature}},
     journal = {Publications de l'Institut Math\'ematique},
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Sorin Dragomir; Renata Grimaldi. On the Topology of Riemann Spaces of Quasi-constant Curvature. Publications de l'Institut Mathématique, _N_S_46 (1989) no. 60, p. 183 . http://geodesic.mathdoc.fr/item/PIM_1989_N_S_46_60_a23/