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The Gilbert--Varshamov (GV) bound is a central benchmark in coding theory, establishing existential guarantees for error-correcting codes and serving as a baseline for both Hamming and quantum fault-tolerant information processing. Despite…

Information Theory · Computer Science 2026-01-27 Chen Yuan , Ruiqi Zhu

In this paper a construction of quantum codes from self-orthogonal algebraic geometry codes is provided. Our method is based on the CSS construction as well as on some peculiar properties of the underlying algebraic curves, named Swiss…

Algebraic Geometry · Mathematics 2019-12-18 Daniele Bartoli , Maria Montanucci , Giovanni Zini

In this paper, we study the construction of quantum codes by applying Steane-enlargement to codes from the Hermitian curve. We cover Steane-enlargement of both usual one-point Hermitian codes and of order bound improved Hermitian codes. In…

Information Theory · Computer Science 2020-02-13 René Bødker Christensen , Olav Geil

The stabilizer code is the most general algebraic construction of quantum error-correcting codes proposed so far. A stabilizer code can be constructed from a self-orthogonal subspace of a symplectic space over a finite field. We propose a…

Quantum Physics · Physics 2007-07-13 Ryutaroh Matsumoto

In this paper, we provide conditions that hulls of generalized Reed-Solomon (GRS) codes are also GRS codes from algebraic geometry codes. If the conditions are not satisfied, we provide a method of linear algebra to find the bases of hulls…

Information Theory · Computer Science 2024-01-25 Xue Jia , Qin Yue , Huan Sun , Junzhen Sui

It is known that the Hermitian varieties are codewords in the code defined by the points and hyperplanes of the projective spaces $PG(r,q^2)$. In finite geometry, also quasi-Hermitian varieties are defined. These are sets of points of…

Combinatorics · Mathematics 2017-06-22 A. Aguglia , D. Bartoli , L. Storme , Zs. Weiner

We use a graph-theoretic approach which yields improvements on the known Gilbert-Varshamov (GV) bound for sum-rank-metric codes for certain parameters. In particular, we show that asymptotically $\mathbb{F}_q^{\mathbf{n} \times \mathbf{m}}$…

Combinatorics · Mathematics 2025-12-17 Aida Abiad , Harper Reijnders , Michael Tait

The second generalized GK maximal curves $\mathcal{GK}_{2,n}$ are maximal curves over finite fields with $q^{2n}$ elements, where $q$ is a prime power and $n \geq 3$ an odd integer, constructed by Beelen and Montanucci. In this paper we…

Algebraic Geometry · Mathematics 2019-01-28 Maria Montanucci , Vicenzo Pallozzi Lavorante

A unique decoding algorithm for general AG codes, namely multipoint evaluation codes on algebraic curves, is presented. It is a natural generalization of the previous decoding algorithm which was only for one-point AG codes. As such, it…

Information Theory · Computer Science 2016-11-15 Kwankyu Lee , Maria Bras-Amorós , Michael E. O'Sullivan

Algebraic geometry codes on the Hermitian curve have been the subject of several papers, since they happen to have good performances and large automorphism groups. Here, those arising from the Singer cycle of the Hermitian curve are…

Algebraic Geometry · Mathematics 2026-01-05 Gábor Korchmáros , Federico Romaniello , Valentino Smaldore

In this article, we present a new construction of codes from algebraic curves. Given a curve over a non-prime finite field, the obtained codes are defined over a subfield. We call them Cartier Codes since their construction involves the…

Number Theory · Mathematics 2014-12-18 Alain Couvreur

We prove tightness of right logarithmic asymptotic of Varshamov- Gilbert bound for linear binary codes We find general asymptotic coding bound for linear codes

Information Theory · Computer Science 2017-06-13 Vladimir Blinovsky

We revisit the well-known Gilbert-Varshamov (GV) bound for constrained systems. In 1991, Kolesnik and Krachkovsky showed that GV bound can be determined via the solution of some optimization problem. Later, Marcus and Roth (1992) modified…

Information Theory · Computer Science 2024-03-01 Keshav Goyal , Han Mao Kiah

We present new quantum codes with good parameters which are constructed from self-orthogonal algebraic geometry codes. Our method permits a wide class of curves to be used in the formation of these codes, which greatly extends the class of…

Algebraic Geometry · Mathematics 2025-01-17 Fernando Hernando , Gary McGuire , Francisco Monserrat , Julio José Moyano-Fernández

We give a covariant realization of the doubled sigma-model formulation of duality-symmetric string theory within the general framework of para-Hermitian geometry. We define a notion of generalized metric on a para-Hermitian manifold and…

High Energy Physics - Theory · Physics 2021-06-03 Vincenzo Emilio Marotta , Richard J. Szabo

Sum-rank codes have wide applications in multishot network coding, distributed storage and the construction of space-time codes. Asymptotically good sequences of linearized algebraic geometry sum-rank codes, exceeding the…

Information Theory · Computer Science 2026-02-26 Huimin Lao , Hao Chen , San Ling , Yaqi Chen

We prove lower bound and finiteness properties for arakelovian heights with respect to pre-log-log hermitian ample line bundles. These heights were introduced by Burgos, Kramer and K\"uhn, in their extension of the arithmetic intersection…

Number Theory · Mathematics 2007-05-23 Gerard Freixas i Montplet

We use the relations between quadrics, trace codes and algebraic curves to construct algebraic curves over finite fields with many points and to compute generalized Hamming weights of codes.

alg-geom · Mathematics 2008-02-03 G. van der Geer , M. van der Vlugt

A method of constructing algebraic-geometric codes with many automorphisms arising from Galois points for algebraic curves is presented.

Algebraic Geometry · Mathematics 2022-12-01 Satoru Fukasawa

We present a general construction of asymmetric quantum codes based on additive codes under the trace Hermitian inner product. Various families of additive codes over $\F_{4}$ are used in the construction of many asymmetric quantum codes…

Information Theory · Computer Science 2013-07-04 Martianus Frederic Ezerman , San Ling , Patrick Sole