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On sets without tangents in Galois planes of even order

Authors :
Blokhuis, A.
Szõnyi, T.
Weiner, Z.
Geometry
Mathematics
Discrete Algebra and Geometry
Source :
Designs, Codes and Cryptography, 29, 91-98. Springer Netherlands, Designs, Codes and Cryptography, 29(1-3), 91-98. Springer, Blokhuis, A, Szõnyi, T & Weiner, Z 2003, ' On sets without tangents in Galois planes of even order ', Designs, Codes and Cryptography, vol. 29, pp. 91-98 . https://doi.org/10.1023/A:1024192106237
Publication Year :
2003

Abstract

A study on sets without tangents in Galois planes of even order is presented. Examples are given for small sets without tangents but having odd lines. It is shown that the cardinality of a nonempty set of points without tangents in the desarguesian projective plane PG(2,q), q even, is at least q+1+√q/6 provided that the set is not of even type.

Details

Language :
English
ISSN :
09251022
Database :
OpenAIRE
Journal :
Designs, Codes and Cryptography, 29, 91-98. Springer Netherlands, Designs, Codes and Cryptography, 29(1-3), 91-98. Springer, Blokhuis, A, Szõnyi, T & Weiner, Z 2003, ' On sets without tangents in Galois planes of even order ', Designs, Codes and Cryptography, vol. 29, pp. 91-98 . https://doi.org/10.1023/A:1024192106237
Accession number :
edsair.dedup.wf.001..4aec7ce2b7a781fe8a6ff0e6f7e25e37