Additive cyclic codes over mixed alphabets and the football pool problem

2017 ◽  
Vol 09 (01) ◽  
pp. 1750010
Author(s):  
Taher Abualrub ◽  
N. Aydin

Motivated by a generalization of the football pool problem, we introduce additive cyclic codes over mixed alphabets of the form [Formula: see text] where [Formula: see text], [Formula: see text] for distinct primes [Formula: see text]. We study their algebraic properties, generating sets, and duals. Additionally, we give examples of additive cyclic codes over the alphabet [Formula: see text] that have best-known or optimal parameters.

Author(s):  
Wenhua ZHANG ◽  
Shidong ZHANG ◽  
Yong WANG ◽  
Jianpeng WANG

Author(s):  
Ting Yao ◽  
Shixin Zhu ◽  
Binbin Pang

Let [Formula: see text], where [Formula: see text] is a power of a prime number [Formula: see text] and [Formula: see text]. A triple cyclic code of length [Formula: see text] over [Formula: see text] is a set that can be partitioned into three parts that any cyclic shift of the coordinates of the three parts leaves the code invariant. These codes can be viewed as [Formula: see text]-submodules of [Formula: see text]. In this paper, we study the generator polynomials and the minimum generating sets of this kind of codes. Some optimal or almost optimal linear codes are obtained from this family of codes. We present the relationship between the generators of triple cyclic codes and their duals. As a special class of triple cyclic codes, separable codes over [Formula: see text] are discussed briefly in the end.


2010 ◽  
Vol 44 (2) ◽  
pp. 87-90
Author(s):  
A. V. Tarasov ◽  
G. I. Topazh

2015 ◽  
Vol 07 (04) ◽  
pp. 1550058 ◽  
Author(s):  
Jian Gao ◽  
Fang-Wei Fu ◽  
Ling Xiao ◽  
Rama Krishna Bandi

Let [Formula: see text], where [Formula: see text] and [Formula: see text]. In this paper, minimum generating sets of cyclic codes over [Formula: see text] are given. A necessary and sufficient condition for cyclic codes over [Formula: see text] to be [Formula: see text]-free is obtained and a BCH-type bound on the minimum Hamming distance for them is also given.


2020 ◽  
Vol 39 (2) ◽  
Author(s):  
Mohamadbagher Zeraatpisheh ◽  
Morteza Esmaeili ◽  
T. Aaron Gulliver

Mathematics ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. 1820
Author(s):  
Tenghui Deng ◽  
Jing Yang

In this paper, an algebraic structure of a type of double cyclic codes is investigated, which covers some existing codes as special cases. The paper presents generic results about the generating polynomials, minimal generating sets, matrices and dual codes of the proposed codes.


2018 ◽  
Vol 1 (1) ◽  
pp. 46-51 ◽  
Author(s):  
A. V. Shelgunov

Subject: the subject of the study are low-power generator sets with a power of up to 30 kW.Materials and methods: in this paper, the main domestic legislative documents regulating the requirements for products. An assessment is made of the current state of Russian engine building.Results: the detailed analysis of the modern domestic market of power generating units with a capacity of up to 30 kW is made, the main problems in the field of domestic production of  electric power generators in the range up to 30 kW are revealed, and the prospects for import substitution of gasoline and diesel engines are noted.Conclusions: almost complete absence of the market of domestic low-power generating sets is established, insufficient measures taken to support domestic producers are noted, measures are  proposed for the development of domestic production of power units in the range of up to 30 kW.


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