Title
Relative profiles and extended weight polynomials of almost affine codes
Abstract
In this paper we study various aspects concerning almost affine codes, a class including, and strictly larger than, that of linear codes. We use the combinatorial tool demi-matroids to show how one can define relative length/dimension and dimension/length profiles of flags (chains) of almost affine codes. In addition we show two specific results. One such result is how one can express the relative length/dimension profiles (also called relative generalized Hamming weights) of a pair of codes in terms of intersection properties between the smallest of these codes and subcodes of the largest code. The other result tells how one can find the extended weight polynomials, expressing the number of codewords of each possible weight, for each code in an infinite hierarchy of extensions of a code over a given alphabet.
Year
DOI
Venue
2019
10.1007/s12095-018-0348-8
Cryptography and Communications
Keywords
Field
DocType
Relative profiles, Almost affine codes, Extended weight polynomials, 94B05
Affine transformation,Discrete mathematics,Hamming code,Combinatorics,Polynomial,Hierarchy,Code (cryptography),Mathematics,Alphabet
Journal
Volume
Issue
ISSN
11
5
1936-2455
Citations 
PageRank 
References 
0
0.34
10
Authors
2
Name
Order
Citations
PageRank
Trygve Johnsen1337.94
hugues verdure2154.54