Geodesic
Lie algebras of projective motions of five-dimensional pseudo-Riemannian spaces. III. Curvature forms of five-dimensional rigid $h$-spaces in a skew-normal frame
Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory, Algebra, Geometry, and Combinatorics, Tome 214 (2022), pp. 3-20

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This work is devoted to the problem of studying multidimensional pseudo-Riemannian manifolds that admit Lie algebras of infinitesimal projective (in particular, affine) transformations, wider than Lie algebras of infinitesimal homotheties. Such manifolds have numerous geometric and physical applications. This paper is the third part of the work. The first part: Itogi Nauki i Tekhniki. Sovremennaya Matematika i Ee Prilozheniya. Tematicheskie Obzory. — 2022. — 212. — P. 10–29. The second part: Itogi Nauki i Tekhniki. Sovremennaya Matematika i Ee Prilozheniya. Tematicheskie Obzory. — 2022. — 213. — P. 10–37. Continuation will be published in future issues.
Keywords: differential geometry, five-dimensional pseudo-Riemannian manifold, $h$-space, system of partial differential equations, nonhomothetical projective motion, Killing equation, projective Lie algebra. 
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A. V. Aminova; D. R. Khakimov. Lie algebras of projective motions of five-dimensional pseudo-Riemannian spaces. III. Curvature forms of five-dimensional rigid $h$-spaces in a skew-normal frame. Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory, Algebra, Geometry, and Combinatorics, Tome 214 (2022), pp. 3-20. http://geodesic.mathdoc.fr/item/INTO_2022_214_a0/