Non-degenerate Linear Codes Determined by their Weight Enumerators |
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Authors: | Takao Kato |
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Affiliation: | (1) Department of Mathematical Sciences, Faculty of Science, Yamaguchi University, Yamaguchi, 753-8512, Japan (e-mail: kato@yamaguchi-u.ac.jp), JP |
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Abstract: | In 1], Homma-Kim-Yoo showed that a code C such that the support of the associated projective system is a union of two linear subspaces, is uniquely determined up to
equivalence by its weight enumerator. Let W
C
(z) be the weight enumerator of a code C. Assuming certain conditions on the coefficients of W
C
(z) for some range, we prove that the support of the associated projective system is a union of two linear subspaces.
Received: February 27, 2002; revised version: October 2, 2002
Keywords: Linear code, Projective system, Weight enumerator.
MSC2000: 94B27, 94B65, 51E20 Partially supported by Grant-in-Aid for Scientific Research, Ministry of Education, #12640180 |
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