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The Analytic Embedding of Geometries with Scalar Product

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Abstract

We solve the problem of finding all \((n+2)\)-dimensional geometries defined by a nondegenerate analytic function

$$ \varphi (\varepsilon _1x^1_Ax^1_B+ \cdots +\varepsilon _{n+1}x^{n+1}_Ax^{n+1}_B,w_A,w_B),$$

which is an invariant of a motion group of dimension \((n+1)(n+2)/2\). As a result, we have two solutions: the expected scalar product \(\varepsilon _1x^1_Ax^1_B+ \cdots +\varepsilon _{n+1}x^{n+1}_Ax^{n+1}_B+\varepsilon w_Aw_B \) and the unexpected scalar product \(\varepsilon _1x^1_Ax^1_B+ \cdots +\varepsilon _{n+1}x^{n+1}_Ax^{n+1}_B+w_A+w_B \). The solution of the problem is reduced to the analytic solution of a functional equation of a special kind.

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ACKNOWLEDGMENTS

The author expresses his sincere gratitude to Professor Gennadiĭ Grigor’evich Mikailichenko for discussing the results.

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  1. Gorno-Altaisk State University, Gorno-Altaisk, 649000, Russia

    V. A. Kyrov

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  1. V. A. Kyrov
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Kyrov, V.A. The Analytic Embedding of Geometries with Scalar Product. Sib. Adv. Math. 31, 27–39 (2021). https://doi.org/10.1134/S105513442101003X

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