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Journal of Siberian Federal University. Mathematics & Physics, 2022, Volume 15, Issue 3, Pages 378–384
DOI: https://doi.org/10.17516/1997-1397-2022-15-3-378-384
(Mi jsfu1005)
 

This article is cited in 1 scientific paper (total in 1 paper)

Dihedral group of order $8$ in an autotopism group of a semifield projective plane of odd order

Olga V. Kravtsova

Siberian Federal University, Krasnoyarsk, Russian Federation
Full-text PDF (108 kB) Citations (1)
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Abstract: We investigate the well-known hypothesis of D. R. Hughes that the full collineation group of a non-Desarguesian semifield projective plane of a finite order is solvable (the question 11.76 in Kourovka notebook was written down by N. D. Podufalov). The spread set method allows us to prove that any non-Desarguesian semifield plane of order $p^N$, where $p\equiv 1\pmod 4$ is prime, does not admit an autotopism subgroup isomorphic to the dihedral group of order $8$. As a corollary, we obtain the extensive list of simple non-Abelian groups which cannot be the autotopism subgroups.
Keywords: semifield plane, spread set, Baer involution, homology, autotopism.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation 075-02-2022-876
This work is supported by the Krasnoyarsk Mathematical Center and financed by the Ministry of Science and Higher Education of the Russian Federation (Agreement no. 075-02-2022-876).
Received: 10.01.2022
Received in revised form: 14.02.2022
Accepted: 01.04.2022
Document Type: Article
UDC: 519.145
Language: English
Citation: Olga V. Kravtsova, “Dihedral group of order $8$ in an autotopism group of a semifield projective plane of odd order”, J. Sib. Fed. Univ. Math. Phys., 15:3 (2022), 378–384
Citation in format AMSBIB
\Bibitem{Kra22}
\by Olga~V.~Kravtsova
\paper Dihedral group of order $8$ in an autotopism group of a semifield projective plane of odd order
\jour J. Sib. Fed. Univ. Math. Phys.
\yr 2022
\vol 15
\issue 3
\pages 378--384
\mathnet{http://mi.mathnet.ru/jsfu1005}
\crossref{https://doi.org/10.17516/1997-1397-2022-15-3-378-384}
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  • This publication is cited in the following 1 articles:
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    Журнал Сибирского федерального университета. Серия "Математика и физика"
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