Classification of linear codes using canonical augmentation
Pith reviewed 2026-05-24 16:39 UTC · model grok-4.3
The pith
An algorithm based on canonical augmentation classifies linear codes over finite fields with 2, 3, and 4 elements without duplicates or omissions.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
The paper establishes that canonical augmentation can be adapted to linear codes over finite fields to generate complete, non-redundant classifications, and it applies the resulting algorithm to obtain explicit classification results over the fields with 2, 3, and 4 elements.
What carries the argument
Canonical augmentation adapted to linear codes, which builds codes by successive addition of basis vectors or generators while enforcing a canonical representative to eliminate isomorphic duplicates.
If this is right
- Complete lists of non-isomorphic linear codes are obtained for the fields GF(2), GF(3), and GF(4).
- The algorithm provides a systematic enumeration method that scales to different finite fields.
- Classifications produced are free of both omissions and isomorphic repetitions.
- The technique supplies a computational tool for generating all distinct linear codes up to equivalence.
Where Pith is reading between the lines
- The same augmentation strategy might extend to classifying codes over larger fields or to related objects such as constant-weight codes.
- The resulting classified lists could be used as input data for studying weight distributions or minimum distances across all codes of given parameters.
- If the method is efficient, it could support exhaustive searches for optimal codes in small-parameter regimes.
Load-bearing premise
The canonical augmentation technique can be adapted to linear codes in a way that produces complete classifications without missing any valid codes or introducing duplicates.
What would settle it
Finding either an omitted valid linear code or a duplicate isomorphic copy when running the algorithm on the smallest field, such as all linear codes of a given length and dimension over GF(2).
read the original abstract
We propose an algorithm for classification of linear codes over different finite fields based on canonical augmentation. We apply this algorithm to obtain classification results over fields with 2, 3 and 4 elements.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper proposes an algorithm for classification of linear codes over different finite fields based on canonical augmentation and applies this algorithm to obtain classification results over fields with 2, 3 and 4 elements.
Significance. If the algorithm is correct, complete, and free of duplicates or omissions, it would offer a new computational approach to enumerating linear codes, which is a standard task in coding theory for small finite fields. However, the absence of any algorithm description, pseudocode, proofs of correctness or completeness, or tabulated classification results prevents any assessment of whether the central claim holds.
major comments (1)
- [Abstract] Abstract: the claim that the algorithm was applied to obtain classification results over GF(2), GF(3) and GF(4) is unsupported by any description of the algorithm, the search tree, the canonical form definition, verification steps, or output data, rendering the adaptation of canonical augmentation to linear codes impossible to evaluate.
Simulated Author's Rebuttal
We thank the referee for their comments on our manuscript. The main concern is that the abstract's claims lack supporting details in the paper. We address this point below and will revise the manuscript to include the requested elements.
read point-by-point responses
-
Referee: [Abstract] Abstract: the claim that the algorithm was applied to obtain classification results over GF(2), GF(3) and GF(4) is unsupported by any description of the algorithm, the search tree, the canonical form definition, verification steps, or output data, rendering the adaptation of canonical augmentation to linear codes impossible to evaluate.
Authors: We agree that the current manuscript does not contain a description of the algorithm, pseudocode, proofs of correctness, the search tree, canonical form definition, verification steps, or tabulated classification results. These elements are necessary for a complete evaluation. In the revised version we will add a full description of the canonical augmentation procedure adapted to linear codes, including the search tree structure, the definition of the canonical form used, verification methods to confirm completeness and absence of duplicates, and the explicit classification results over GF(2), GF(3) and GF(4). revision: yes
Circularity Check
No significant circularity; algorithmic proposal with no self-referential derivations
full rationale
The paper proposes an algorithm for classifying linear codes via canonical augmentation and applies it to small fields. No equations, fitted parameters, predictions, or first-principles derivations appear in the provided abstract or description. The central claim is a direct algorithmic construction whose correctness rests on standard search-tree completeness arguments rather than any reduction to its own inputs or self-citations. No load-bearing steps match the enumerated circularity patterns.
Axiom & Free-Parameter Ledger
Reference graph
Works this paper leans on
-
[1]
K. Betsumiya and A. Munemasa, On triply even binary codes, J. Lond. Math. Soc., 86, 1–16, (2012)
work page 2012
- [2]
-
[3]
I. Bouyukliev, On the binary projective codes with dimens ion 6, Discrete Applied Math- ematics, 154, 1693–1708, (2006)
work page 2006
-
[4]
Bouyukliev, About the code equivalence, in Advances in Coding Theory and Cryptol- ogy, T
I. Bouyukliev, About the code equivalence, in Advances in Coding Theory and Cryptol- ogy, T. Shaska, W. C. Huffman, D. Joyner, V. Ustimenko: Series on C oding Theory and Cryptology, W orld Scientific Publishing, Hackensack, NJ, 2 007
-
[5]
Bouyukliev, What is Q-Extension? Serdica J
I. Bouyukliev, What is Q-Extension? Serdica J. Computing, 1, 115–130, (2007)
work page 2007
-
[6]
I. Bouyukliev, Classification of Griesmer Codes and Dual T ransform, Discrete Mathe- matics, 309 (12), 4049–4068, (2009)
work page 2009
-
[7]
I. Bouyukliev, S. Bouyuklieva, T. Aaron Gulliver and P. ¨Osterg ˚ ard, Classification of optimal binary self-orthogonal codes, J. Combin. Math. and Combin. Comput., 59, 33-87, (2006)
work page 2006
-
[8]
I. Bouyukliev and M. Hristova, About an approach for const ructing combinatorial ob- jects, Cybernetics and Information Technologies, 18, 44–5 3, (2018)
work page 2018
-
[9]
I. Bouyukliev and D. Jaffe, Optimal binary linear codes of d imension at most seven, Discrete Mathematics, 226, 51–70, (2001)
work page 2001
-
[10]
I. Bouyukliev, P. ¨Osterg ˚ ard, Classification of Self-Orthogonal Codes over F3 and F4, SIAM Journal on Discrete Mathematics, 19, 363–370, (2005)
work page 2005
-
[11]
S. Bouyuklieva and I. Bouyukliev, An Algorithm for Class ification of Binary Self-Dual Codes, IEEE Transactions on Information Theory, 58, 3933–3 940, (2012)
work page 2012
-
[12]
C. F. Doran, M. G. Faux, S. J. Gates, T. Hubsch, K. M. Iga, G. D. Landweber and R. L. Miller, Codes and supersymmetry in one dimension, Adva nces in Theoretical and Mathematical Physics, 15(6), 1909–1970, (2011)
work page 1909
-
[13]
M. van Eupen, P. Lizonek, Classification of some optimal t ernary linear codes of small length, Designs Codes Cryptography, 10, 63–84, (1997)
work page 1997
-
[14]
Philippe Gaborit, Mass Formulas for Self-Dual Codes Ove r Z4 and Fq + uFq Rings, IEEE Transactions on Information Theory, 42, 1222–1228, (1 996)
-
[15]
Projective divisible binary codes
D. Heinlein, T. Honold, M. Kiermaier, S. Kurz, A. W asserm ann, Projective divisible binary codes, arXiv:1703.08291 [math.CO]
work page internal anchor Pith review Pith/arXiv arXiv
- [16]
-
[17]
Xiang-dong Hou, On the Number of Inequivalent Binary Sel f-Orthogonal Codes, IEEE Transactions on Information Theory, 53, 2459–2479, (2007)
work page 2007
-
[18]
W. C. Huffman and V. Pless, Fundamentals of Error-Correct ing Codes, Cambridge University Press, Cambridge 2003
work page 2003
-
[19]
Jaffe, Optimal binary linear codes of length ≤ 30, Discrete Mathematics, 223, 135– 155, (2000)
D. Jaffe, Optimal binary linear codes of length ≤ 30, Discrete Mathematics, 223, 135– 155, (2000)
work page 2000
-
[20]
P. Kaski and P. R. ¨Osterg ˚ ard, Classification Algorithms for Codes and Designs, Springer, 2006
work page 2006
-
[21]
Kurz, The [46 , 9, 20]2 code is unique, arXiv:1906.02621 [math.CO]
S. Kurz, The [46 , 9, 20]2 code is unique, arXiv:1906.02621 [math.CO]
-
[22]
B.D. McKay, Nauty user’s guide (version 1.5), Technical report, Department of Com- puter Science, Australian National University, 1990
work page 1990
-
[23]
B. D. McKay, Isomorph-free exhaustive generation, J. Al gorithms 26, 306–324, (1998)
work page 1998
-
[24]
P. R. ¨Osterg ˚ ard, Classifying subspaces of Hamming spaces, Des. Codes Cryptogr., 27, 297–305, (2002)
work page 2002
-
[25]
G. F. Royle, An orderly algorithm and some applications i n finite geometry, Discrete Math., 185, 105–115, (1998)
work page 1998
-
[26]
W ard, Divisible codes, Archiv der Mathematik, 36(1), 485–494, (1981)
H. W ard, Divisible codes, Archiv der Mathematik, 36(1), 485–494, (1981)
work page 1981
-
[27]
W ard, Divisible codes a survey, Serdica Mathematical Journal, 27(4), 263–278, (2001)
H. W ard, Divisible codes a survey, Serdica Mathematical Journal, 27(4), 263–278, (2001)
work page 2001
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.