Inherited conics in Hall planes
The existence of ovals and hyperovals is an old question in the theory of non-Desarguesian planes. The aim of this paper is to describe when a conic of PG(2,q) remains an arc in the Hall plane obtained by derivation. Some combinatorial properties of the inherited conics are obtained also in those ca...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2019
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| Sorozat: | DISCRETE MATHEMATICS
342 No. 4 |
| Tárgyszavak: | |
| doi: | 10.1016/j.disc.2018.12.009 |
| mtmt: | 30401306 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/29120 |
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| 300 | |a 1098-1107 | ||
| 490 | 0 | |a DISCRETE MATHEMATICS |v 342 No. 4 | |
| 520 | 3 | |a The existence of ovals and hyperovals is an old question in the theory of non-Desarguesian planes. The aim of this paper is to describe when a conic of PG(2,q) remains an arc in the Hall plane obtained by derivation. Some combinatorial properties of the inherited conics are obtained also in those cases when it is not an arc. The key ingredient of the proof is an old lemma by Segre–Korchmáros on Desargues configurations with perspective triangles inscribed in a conic. | |
| 650 | 4 | |a Matematika | |
| 700 | 0 | 1 | |a Kovács István |e aut |
| 700 | 0 | 1 | |a Nagy Gábor Péter |e aut |
| 700 | 0 | 1 | |a Szőnyi Tamás |e aut |
| 856 | 4 | 0 | |u http://publicatio.bibl.u-szeged.hu/29120/1/BlokhuisKovacsNagySzonyiInheritedconicsinHallplanes2019.pdf |z Dokumentum-elérés |