Abstract
Let (V,K,Q) be a noneuclidean regular metric vector space, ρ a fixed element of K and ϕ: V → V a bijection such that
.
Then, under certain conditions, there exist a semilinear bijection (σ,τ): (V,K) → (V,K) and an element α ∈ K \{O} such that
and in the case ρ ≠ O we get\(\alpha = \frac{\rho }{{\rho ^\tau }}\).
Results of this type are stated in [1],[4] – [12],[17] and [18]. Generalizing these results, in this paper it is proved, that the above statement holds in the case 3 ≤ dim V ≤ ∞ ∧ char K arbitrary ∧ ¦K¦ ≥ 4, if ρ is spacelike, and that it is also true in the case 3 ≤ dim V ≤ ∞ ∧ char K ≠ 2,3,5, if ρ is timelike.
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Schröder, E.M. Zur Kennzeichnung distanztreuer Abbildungen in nichteuklidischen Räumen. J Geom 15, 108–118 (1980). https://doi.org/10.1007/BF01922487
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DOI: https://doi.org/10.1007/BF01922487