Results 11 to 20 of about 173,309,485 (168)

Polar Codes for Automorphism Ensemble Decoding [PDF]

open access: yes2021 IEEE Information Theory Workshop (ITW), 2021
6 pages, 4 figures, final version of conference paper accepted to IEEE ITW ...
Pillet, C, Bioglio, V, Land, I
openaire   +6 more sources

Quantum codes from algebraic curves with automorphisms [PDF]

open access: yesCondensed Matter Physics, 2008
Let Χ be an algebraic curve of genus g ≥ 2 defined over a field Fq of characteristic p > 0. From Χ, under certain conditions, we can construct an algebraic geometry code C.
T.Shaska
doaj   +2 more sources

Automorphisms of Codes in the Grassmann Scheme [PDF]

open access: yes, 2012
Two mappings in a finite field, the Frobenius mapping and the cyclic shift mapping, are applied on lines in PG($n,p$) or codes in the Grassmannian, to form automorphisms groups in the Grassmanian and in its codes. These automorphisms are examined on two classical coding problems in the Grassmannian.
Etzion, Tuvi, Vardy, Alexander
core   +5 more sources

On automorphism groups of polar codes [PDF]

open access: yesCoRR
Over the past years, Polar codes have arisen as a highly effective class of linear codes, equipped with a decoding algorithm of low computational complexity. This family of codes share a common algebraic formalism with the well-known Reed-Muller codes, which involves monomial evaluations. As useful algebraic codes, more specifically known as decreasing
Jicheng Ma, Guiying Yan
core   +4 more sources

Geometric Goppa codes on Fermat curves [PDF]

open access: yesLe Matematiche, 2005
We consider a class of codes defined by Goppa’s algebraic-geometric construction on Fermat curves. Automorphisms and decoding of such codes are investigated.
Antonino Giorgio Spera
doaj   +2 more sources

On the Automorphism Group of Polar Codes [PDF]

open access: yes2021 IEEE International Symposium on Information Theory (ISIT), 2021
The automorphism group of a code is the set of permutations of the codeword symbols that map the whole code onto itself. For polar codes, only a part of the automorphism group was known, namely the lower-triangular affine group (LTA), which is solely based upon the partial order of the code's synthetic channels.
Marvin Geiselhart   +4 more
openaire   +3 more sources

Automorphisms of real Lie algebras of dimension five or less [PDF]

open access: yes, 2013
The Lie algebra version of the Krull-Schmidt Theorem is formulated and proved. This leads to a method for constructing the automorphisms of a direct sum of Lie algebras from the automorphisms of its indecomposable components.
Gray, RJ   +8 more
core   +1 more source

Automorphism Ensemble Decoding of Reed–Muller Codes [PDF]

open access: yesIEEE Transactions on Communications, 2021
Accepted for Publication in IEEE Transactions on ...
Marvin Geiselhart   +4 more
openaire   +4 more sources

Contributions to automorphisms of affine spaces [PDF]

open access: yes, 2013
We study aspects of the group G_n of polynomial automorphisms of the affine space A^n, the so-called affine Cremona group. Shafarevich introduced on G_n the structure of an ind-variety, an infinite-dimensional analogon to a (classical) variety.
Stampfli, Immanuel
core   +1 more source

Automorphism groups of Grassmann codes

open access: yesFinite Fields and Their Applications, 2013
revised ...
Sudhir R. Ghorpade, Krishna V. Kaipa
openaire   +4 more sources

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