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Erschienen in: Designs, Codes and Cryptography 2-3/2019

01.10.2018

Types of spreads and duality of the parallelisms of PG(3, 5) with automorphisms of order 13

verfasst von: Svetlana Topalova, Stela Zhelezova

Erschienen in: Designs, Codes and Cryptography | Ausgabe 2-3/2019

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Abstract

A spread is a set of lines of PG(nq) which partition the point set. A parallelism is a partition of the set of all lines by spreads. Empirical data on parallelisms is of interest both from theoretical point of view, and for different applications. Only 51 explicit examples of parallelisms of PG(3, 5) have been known. We construct all (321) parallelisms of PG(3, 5) with automorphisms of order 13 and classify them by the order of their automorphism group, the number of reguli in their spreads and duality. There are no regular ones among them. There are 19 self-dual parallelisms. We also claim that PG(3, 5) has no point-transitive parallelisms.
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Metadaten
Titel
Types of spreads and duality of the parallelisms of PG(3, 5) with automorphisms of order 13
verfasst von
Svetlana Topalova
Stela Zhelezova
Publikationsdatum
01.10.2018
Verlag
Springer US
Erschienen in
Designs, Codes and Cryptography / Ausgabe 2-3/2019
Print ISSN: 0925-1022
Elektronische ISSN: 1573-7586
DOI
https://doi.org/10.1007/s10623-018-0558-2

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