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On Gaps in the Orders of Complete Groups of Isometry and Homoteties in Specialized Riemannian Spaces and Metrics of the Most Mobile of These Spaces of the First Six Lacunars

Abstract

In the present paper there are considered metric Riemannian spaces  Vn4a,  in the metrics of which four algebraic structures work at once: real numbers  Dm1 and  complex numbers  Cm2, quaternions  Hm3 and octions  Om4. We are interested in these spaces in terms of their isometric and homothetic mobility. It turns out that there are lacunas (gaps) in the orders  r of complete groups of isometries  Gr and homotheties Pr. The metrics of the most mobile spaces  Vn4a of the first six lacunarities in the sense of I. P. Egorov are found.

About the Author

Z. N. Chetyrkina
Belarusian State University of Informatics and Radioelectronics
Belarus

Chetyrkina Zinaida Nikandrovna, Cand. of Sci., Associate Professor

220036, Minsk, Kunsevchina St., 36–580

Tel.: +375 29 275-24-64



References

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7. Laptev B. L. (1938) Lie Derivative for Objects That Are Functions of a Point and a Direction. Proceedings of the Physical and Mathematical Society . Kazan. (10), 3–38 (in Russian).

8. Chetyrkina Z. N. (1966) Homotheties and Motions in Two-Dimensional Finsler Spaces. Volga Mathematical Collection. (5), 366–373 (in Russian).

9. Chetyrkina Z. N. (1984) Randers Spaces of First Lacunarity and Maximally Mobile Finsler Spaces. News of Higher Educational Institutions. Mathematics. (11), 53–56 (in Russian).


Review

For citations:


Chetyrkina Z.N. On Gaps in the Orders of Complete Groups of Isometry and Homoteties in Specialized Riemannian Spaces and Metrics of the Most Mobile of These Spaces of the First Six Lacunars. Doklady BGUIR. 2024;22(3):106-111. (In Russ.)

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ISSN 1729-7648 (Print)
ISSN 2708-0382 (Online)