Paper Info
Title
Lexicodes over Finite Principal Left Ideal Rings.
Abstract
Let R be a finite principal left ideal ring. Via a total ordering of the ring elements and an ordered basis a lexicographic ordering of the module R^n is produced. This is used to set up a greedy algorithm that selects vectors for which all linear combination with the previously selected vectors satisfy a pre-specified selection property and updates the to-be-constructed code to the linear hull of the vectors selected so far. The output is called a lexicode. This process was discussed earlier in the literature for fields and chain rings. In this paper we investigate the properties of such lexicodes over finite principal left ideal rings and show that the total ordering of the ring elements has to respect containment of ideals in order for the algorithm to produce meaningful results. Only then it is guaranteed that the algorithm is exhaustive and thus produces codes that are maximal with respect to inclusion. It is further illustrated that the output of the algorithm heavily depends on the total ordering and chosen basis.
Year
Venue
Field
2016
arXiv: Information Theory
Discrete mathematics,Linear combination,Combinatorics,Mathematical optimization,Linear span,Ideal (ring theory),Greedy algorithm,Lexicographical order,Mathematics,Principal ideal ring
DocType
Volume
Citations 
Journal
abs/1612.04703
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Jared Antrobus100.34
Heide Gluesing-Luerssen26912.81