The non-existence of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>๐ฝ</mml:mi> <mml:mi>q</mml:mi> </mml:msub> </mml:math> -translation spreads of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:
Using the connection between translation spreads of the generalized hexagon <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>H</mml:mi> <mml:mo>(</mml:mo> <mml:mi>q</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> and linear sets (see Cardinali et al. in Eur J Comb 23:367โ376, 2002; Lunardon and Polverino in J Algebraic Comb 18:255โ262, 2003), the non-existence of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>๐ฝ</mml:mi> <mml:mi>q</mml:mi> </mml:msub> </mml:math> -translation spreads of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>H</mml:mi> <mml:mo>(</mml:mo> <mml:msup> <mml:mi>q</mml:mi> <mml:mn>2</mml:mn> </mml:msup> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> when <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>p</mml:mi> <mml:mo>></mml:mo> <mml:mn>3</mml:mn> </mml:mrow> </mml:math> , <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>q</mml:mi> <mml:mo>=</mml:mo> <mml:msup> <mml:mi>p</mml:mi> <mml:mi>h</mml:mi> </mml:msup> </mml:mrow> </mml:math> , and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>q</mml:mi> </mml:math> is large enough is proven. This answers to a question posed in [Marino and Polverino in J Algebraic Comb 42:725-744, 2015].
Authors
- Massimo Giulietti (ORCID: https://orcid.org/0000-0001-9690-5661)
- Alessandro Giannoni
- Giuseppe Marino (ORCID: https://orcid.org/0000-0001-9381-9338)
- Daniele Bartoli
Institutions
- University of Perugia (IT)
- Federico II University Hospital (IT)
- University of Naples Federico II (IT)
Publication Details
- Journal
- Algebraic Combinatorics
- Published
- 2026-01-06
- DOI
- https://doi.org/10.5802/alco.456
- Primary Topic
- Finite Group Theory Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00