An improved upper bound for the football pool problem for nine matches

被引:1
|
作者
Di Pasquale, F [1 ]
Östergård, PRJ [1 ]
机构
[1] Helsinki Univ Technol, Dept Elect & Commun Engn, Espoo, Finland
关键词
automorphism group; covering code; football pool problem;
D O I
10.1016/S0097-3165(03)00010-4
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The problem of determining K-3(n, 1), the minimum size of a ternary code of length n and covering radius 1, is called the football pool problem. By construction, it is here shown that K-3(9, 1) less than or equal to 1269. A code whose full automorphism group has order 648 is given, but this bound is actually achieved by a vast number of inequivalent codes. (C) 2003 Elsevier Science (USA). All rights reserved.
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页码:204 / 206
页数:3
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