Results 21 to 30 of about 640,608 (278)

Narain CFTs and error-correcting codes on finite fields

open access: yesJournal of High Energy Physics, 2022
We construct Narain CFTs from self-dual codes on the finite field F p through even self-dual lattices for any prime p > 2. Using this correspondence, we can relate the spectral gap and the partition function of the CFT to the error correction capability ...
Shinichiro Yahagi
doaj   +1 more source

Construction of isodual codes from polycirculant matrices

open access: yes, 2020
Double polycirculant codes are introduced here as a generalization of double circulant codes. When the matrix of the polyshift is a companion matrix of a trinomial, we show that such a code is isodual, hence formally self-dual.
Shi, Minjia, Sole, Patrick, Xu, Li
core   +3 more sources

SHADOW OPTIMAL SELF-DUAL CODES

open access: yesKyushu Journal of Mathematics, 1999
This paper considers binary linear self-dual codes. An optimal self-dual code has the highest minimum weight for the given length. Shadow codes were previously introduced by \textit{J. H. Conway} and \textit{N. J. A. Sloane} [IEEE Trans. Inf. Theory 36, 1319-1333 (1990; Zbl 0713.94016)].
Dougherty, Steven T., Harada, Masaaki
openaire   +2 more sources

On self-dual double circulant codes [PDF]

open access: yesDesigns, Codes and Cryptography, 2017
Self-dual double circulant codes of odd dimension are shown to be dihedral in even characteristic and consta-dihedral in odd characteristic. Exact counting formulae are derived for them and used to show they contain families of codes with relative distance satisfying a modified Gilbert-Varshamov bound.
Alahmadi, Adel   +2 more
openaire   +5 more sources

On the Problem of the Existence of a Square Matrix U Such That UUT = −I over Zpm

open access: yesInformation, 2017
Building-up construction is one of several methods for constructing self-dual codes. Recently, a new building-up construction method has been developed by S.
Sunghyu Han
doaj   +1 more source

Self-Dual Codes

open access: yes, 2002
Self-dual codes are important because many of the best codes known are of this type and they have a rich mathematical theory. Topics covered in this survey include codes over F_2, F_3, F_4, F_q, Z_4, Z_m, shadow codes, weight enumerators, Gleason-Pierce theorem, invariant theory, Gleason theorems, bounds, mass formulae, enumeration, extremal codes ...
Rains, E. M., Sloane, N. J. A.
openaire   +2 more sources

Reversible Self-Dual Codes over Finite Field

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi
Reversible self-dual code is a linear code which combine the properties from self-dual code and reversible code. Previous research shows that reversible self-dual codes have only been developed over field of order 2 and order 4.
Ardi Nur Hidayat   +2 more
doaj   +1 more source

Some results on free Euclidean self-dual codes over F2+vF2

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2019
In thispaper, free Euclidean self-dual codes over the ring F2+ v F2 with v2=vof order 4 are considered. A necessary andsufficient condition for the form of the generator matrix of a free Euclideanself-dual code is given.
Refia Aksoy, Fatma Çalışkan
doaj   +1 more source

On McEliece-Type Cryptosystems Using Self-Dual Codes With Large Minimum Weight

open access: yesIEEE Access, 2023
One of the Round 3 Finalists in the NIST post-quantum cryptography call is the Classic McEliece cryptosystem. Although it is one of the most secure cryptosystems, the large size of its public key remains a practical limitation. In this work, we propose a
Luca Mariot   +2 more
doaj   +1 more source

An Enumeration of the Equivalence Classes of Self-Dual Matrix Codes

open access: yes, 2015
As a result of their applications in network coding, space-time coding, and coding for criss-cross errors, matrix codes have garnered significant attention; in various contexts, these codes have also been termed rank-metric codes, space-time codes over ...
Morrison, Katherine
core   +1 more source

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