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Balanced Gray codes.

Bhat, Girish S., Savage, Carla D. (1996)

The Electronic Journal of Combinatorics [electronic only]

Classification of Maximal Optical Orthogonal Codes of Weight 3 and Small Lengths

Baicheva, Tsonka, Topalova, Svetlana (2015)

Serdica Journal of Computing

Dedicated to the memory of the late professor Stefan Dodunekov on the occasion of his 70th anniversary. We classify up to multiplier equivalence maximal (v, 3, 1) optical orthogonal codes (OOCs) with v ≤ 61 and maximal (v, 3, 2, 1) OOCs with v ≤ 99. There is a one-to-one correspondence between maximal (v, 3, 1) OOCs, maximal cyclic binary constant weight codes of weight 3 and minimum dis tance 4, (v, 3; ⌊(v − 1)/6⌋) difference packings, and maximal (v, 3, 1) binary cyclically permutable constant...

Creation of unequal error protection codes for two groups of symbols

Eugeniusz Kuriata (2008)

International Journal of Applied Mathematics and Computer Science

This article presents problems of unequal information importance. The paper discusses constructive methods of code generation, and a constructive method of generating asymptotic UEP codes is built. An analog model of Hamming's upper bound and Hilbert's lower bound for asymptotic UEP codes is determined.

Maximal circular codes versus maximal codes

Yannick Guesnet (2010)

RAIRO - Theoretical Informatics and Applications

We answer to a question of De Luca and Restivo whether there exists a circular code which is maximal as circular code and not as code.

Maximal circular codes versus maximal codes

Yannick Guesnet (2001)

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications

We answer to a question of De Luca and Restivo whether there exists a circular code which is maximal as circular code and not as code.

Metric coset schemes revisited

Paul Camion, Bernard Courteau, André Montpetit (1999)

Annales de l'institut Fourier

An Abelian scheme corresponds to a special instance of what is usually named a Schur-ring. After the needed results have been quoted on additive codes in Abelian schemes and their duals, coset configurations, coset schemes, metric schemes and distance regular graphs, partition designs and completely regular codes, we give alternative proofs of some of those results. In this way we obtain a construction of metric Abelian schemes and an algorithm to compute their intersection matrices.

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