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The weight hierarchies and generalized weight spectra of the projective codes from degenerate quadrics

✍ Scribed by Zhexian Wan; Xinwen Wu


Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
711 KB
Volume
177
Category
Article
ISSN
0012-365X

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✦ Synopsis


The weight hierarchies and generalized weight spectra of the projective codes from degenerate quadrics in projective spaces over finite fields are determined. These codes satisfy also the chain conditions.


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Small weight codewords in the LDPC codes
✍ V. Pepe; L. Storme; G. Van de Voorde πŸ“‚ Article πŸ“… 2009 πŸ› John Wiley and Sons 🌐 English βš– 242 KB

## Abstract In this article, we investigate the minimum distance and small weight codewords of the LDPC codes of linear representations, using only geometrical methods. First, we present a new lower bound on the minimum distance and we present a number of cases in which this lower bound is sharp. T