Results 11 to 20 of about 764,565 (289)

New classes of few-weight ternary codes from simplicial complexes

open access: yesAIMS Mathematics, 2022
In this article, we describe two classes of few-weight ternary codes, compute their minimum weight and weight distribution from mathematical objects called simplicial complexes.
Yang Pan , Yan Liu
doaj   +1 more source

Optimal Narain CFTs from codes

open access: yesJournal of High Energy Physics, 2022
Recently established connection between additive codes and Narain CFTs provides a new tool to construct theories with special properties and solve modular bootstrap constraints by reducing them to algebraic identities.
Nikolaos Angelinos   +2 more
doaj   +1 more source

BVPs Codes for Solving Optimal Control Problems

open access: yesMathematics, 2021
Optimal control problems arise in many applications and need suitable numerical methods to obtain a solution. The indirect methods are an interesting class of methods based on the Pontryagin’s minimum principle that generates Hamiltonian Boundary Value ...
Francesca Mazzia, Giuseppina Settanni
doaj   +1 more source

Constant-Weight Gray Codes for Local Rank Modulation [PDF]

open access: yes, 2010
We consider the local rank-modulation scheme in which a sliding window going over a sequence of real-valued variables induces a sequence of permutations.
Eyal En Gad   +4 more
core   +4 more sources

A Framework of Constructions of Minimal Storage Regenerating Codes with the Optimal Access/Update Property [PDF]

open access: yes, 2015
In this paper, we present a generic framework for constructing systematic minimum storage regenerating codes with two parity nodes based on the invariant subspace technique.
Li, Jie, Parampalli, Udaya, Tang, Xiaohu
core   +1 more source

Weight distributions for projective binary linear codes from Weil sums

open access: yesAIMS Mathematics, 2021
A class of projective binary linear codes are constructed and their weight distributions are investigated using Weil sums. They have at most three nonzero weights, containing some optimal codes.
Shudi Yang, Zheng-An Yao
doaj   +1 more source

Binary code optimization

open access: yes, 2021
This article shows that any type of binary data can be defined as a collection from codewords of variable length. This feature helps us to define an Injective and surjective function from the suggested codewords to the required codewords. Therefore, by replacing the new codewords, the binary data becomes another binary data regarding the intended goals.
Gharehbagheri, Parviz   +3 more
openaire   +2 more sources

Code optimization in FORM

open access: yesComputer Physics Communications, 2015
31 ...
Kuipers, J.   +2 more
openaire   +3 more sources

Optimal Locally Repairable Codes for Parallel Reading

open access: yesIEEE Access, 2020
Locally repairable codes (LRCs) have important applications in distributed storage systems. In this paper, we study q-ary [n, k, d] LRCs with (r, t, δ)-information-locality, where each of the i-th (1 ≤ i ≤ k) information symbol is ...
Jie Hao   +3 more
doaj   +1 more source

QPSK Block-Modulation Codes for Unequal Error Protection [PDF]

open access: yes, 1995
Unequal error protection (UEP) codes find applications in broadcast channels, as well as in other digital communication systems, where messages have different degrees of importance.
Lin, Shu, Morelos-Zaragoza, Robert H
core   +2 more sources

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