5 papers
Evaluation codes from linear systems of conics
Barbara Gatti, Gábor Korchmáros, Gioia Schulte
The Datta-Johnsen code is an evaluation code where the linear combinations of elementary symmetric polynomials are evaluated on the set of all points with pairwise distinct coordin…
Evaluation codes arising from symmetric polynomials
Barbara Gatti, Gábor Korchmáros, Gábor P. Nagy +2
Datta and Johnsen (Des. Codes and Cryptogr., {\bf{91}} (2023), 747-761) introduced a new family of evalutation codes in an affine space of dimension over a finite field $\m…
The invariant of in the Hermitian function field
Gatti Barbara, Ghiandoni Francesco, Gábor Korchmáros
Let a be function field over an algebraically closed constant field of positive characteristic . For a -automorphism group of ,…
Galois subcovers of the Hermitian curve in characteristic with respect to subgroups of order
Barbara Gatti, Gábor Korchmáros
A (projective, geometrically irreducible, non-singular) curve defined over a finite field is maximal if the number of its $\mathbb{F}_{q^…
Algebraic approach to the completeness problem for -arcs in planes over finite fields
Gábor Korchmáros, Gábor Péter Nagy, Tamás Szőnyi
In a projective plane over a finite field, complete -arcs with few characters are rare but interesting objects with several applications to finite geometry and coding theory…