Abstract
We study the six-dimensional pseudo-Riemannian spaces with two time-like coordinates that admit non-homothetic infinitesimal projective transformations. The metrics are manifestly obtained and the projective group properties are determined. We also find a generic definition of projective motion in the 6-dimensional rigid h-space.
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Zakirova, Z. On projective group properties of the 6D pseudo-Riemannian space. Czech J Phys 55, 1541–1544 (2005). https://doi.org/10.1007/s10582-006-0038-1
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DOI: https://doi.org/10.1007/s10582-006-0038-1