John Sheekey

activity

20122025

most citedOrbits of the stabiliser group of the Segre variety product of three projective lines

1 citations · 1 across the 10 of their papers we have counts for

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3 papers · 1 filter

cs.IT2022

Divisible linear rank metric codes

Olga Polverino, Paolo Santonastaso, John Sheekey +1

A subspace of matrices over $F_{q^{e}}^{m \times n}$ can be naturally embedded as a subspace of matrices in $F_{q}^{e m \times e n}$ with the property that the rank of an…

math.CO2022

Symplectic 4-dimensional semifields of order $8^{4}$ and $9^{4}$

Michel Lavrauw, John Sheekey

We classify symplectic 4-dimensional semifields over $F_{q}$ , for $q \leq 9$ , thereby extending (and confirming) the previously obtained classifications for $q \leq 7$ . The cl…

math.CO2022

Rank-Metric Codes, Semifields, and the Average Critical Problem

Anina Gruica, Alberto Ravagnani, John Sheekey +1

We investigate two fundamental questions intersecting coding theory and combinatorial geometry, with emphasis on their connections. These are the problem of computing the asymptoti…

Divisible linear rank metric codes

Symplectic 4-dimensional semifields of order 84 and 94

Rank-Metric Codes, Semifields, and the Average Critical Problem

Symplectic 4-dimensional semifields of order $8^{4}$ and $9^{4}$