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作者机构:Bulgarian Acad Sci Inst Math & Informat Veliko Tarnovo 5000 Bulgaria Univ Paris 06 F-75005 Paris France
出 版 物:《INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS》 (国际计算机数学杂志)
年 卷 期:2011年第88卷第3期
页 面:443-451页
核心收录:
学科分类:07[理学] 070104[理学-应用数学] 0701[理学-数学]
基 金:Bulgarian National Science Fund [IO-03-02/2006]
主 题:coding theory modular arithmetic elementary number theory vectors and matrices arithmetic linear codes equidistant codes constant-weight equidistant codes lexicographic codes
摘 要:Ashared computer tool QPlus for studying coding theory studying is presented. The system offers computations over Z(q) = {0, 1, ... , q - 1} (q 256) and includes modular arithmetic, elementary number theory, vectors and matrices arithmetic and an environment for research on q-ary codes - linear, constant-weight and equidistant codes. QPlus includes a DLL library package that implements coding theory algorithms. We explore the problem of finding bounds on the size of q-ary codes by computer methods. Some examples for optimal equidistant codes and constant-weight equidistant codes that have been constructed by computer methods developed in QPlus are described. We also research some optimal linear codes.