منابع مشابه
Ternary Constant Weight Codes
Let A3(n, d,w) denote the maximum cardinality of a ternary code with length n, minimum distance d, and constant Hamming weight w. Methods for proving upper and lower bounds on A3(n, d,w) are presented, and a table of exact values and bounds in the range n ≤ 10 is given.
متن کاملOn diameter perfect constant-weight ternary codes
From cosets of binary Hamming codes we construct diameter perfect constantweight ternary codes with weight n − 1 (where n is the code length) and distances 3 and 5. The class of distance 5 codes has parameters unknown before.
متن کاملOn Perfect Ternary Constant Weight Codes
We consider the space of ternary words of length n and fixed weightwwith the usual Hamming distance. A sequence of perfect single error correcting codes in this space is constructed. We prove the nonexistence of such codes with other parameters than those of the sequence.
متن کاملEnumeration of some optimal ternary constant-weight codes
We consider the problem of classification of optimal ternary constantweight codes. We use combinatorial and computer methods to find inequivalent codes for some cases for 3 ≤ d ≤ n ≤ 9.
متن کاملNew Ternary and Quaternary Equidistant Constant Weight Codes
We consider the problem of finding bounds on the size of ternary and quaternary equidistant constant weight codes. We present a computer realization of an algorithm for solving the maximum clique problem. We use it for finding the exact values of the maximum size for ternary and quaternary equidistant constant weight codes for all open cases for n ≤ 10 are found.
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ژورنال
عنوان ژورنال: The Electronic Journal of Combinatorics
سال: 2002
ISSN: 1077-8926
DOI: 10.37236/1657