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The feet of orthogonal Buekenhout–Metz unitals

  • S.G. Barwick EMAIL logo , W.-A. Jackson and P. Wild
Published/Copyright: April 26, 2024
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Abstract

In this article we look at the geometric structure of the feet of an orthogonal Buekenhout–Metz unital 𝓤 in PG(2, q2). We show that the feet of each point form a set of type (0, 1, 2, 4). Further, we discuss the structure of any 4-secants, and determine exactly when the feet form an arc.

MSC 2010: 51E20

Acknowledgements

The authors would like to thank the anonymous referees for their detailed reviews together with helpful comments and suggestions. It has led to several corrections and improvements.

  1. Communicated by: J. Bamberg

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Received: 2022-11-30
Revised: 2024-01-14
Published Online: 2024-04-26
Published in Print: 2024-04-25

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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