SPLITTING FIELDS OF ASSOCIATION SCHEMES

被引:10
|
作者
MUNEMASA, A
机构
[1] Department of Mathematics, The Ohio State University, Columbus
关键词
D O I
10.1016/0097-3165(91)90014-8
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The splitting field K of a commutative association scheme is the extension of the rationals by the adjunction of all eigenvalues of the association scheme. Let L be a subfield of K containing all the Krein parameters. It is shown that the Galois group of K L is contained in the center of the Galois group of K Q. In particular, if the Krein parameters are all rational, then the eigenvalues are contained in a cyclotomic number field. © 1991.
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页码:157 / 161
页数:5
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