LINEAR PRESERVERS OF BALANCED SINGULAR INERTIA CLASSES

被引:3
作者
LOEWY, R [1 ]
PIERCE, S [1 ]
机构
[1] SAN DIEGO STATE UNIV,DEPT MATH,SAN DIEGO,CA 92182
关键词
D O I
10.1016/0024-3795(94)90105-8
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let S(n) denote the real symmetric n x n matrices and H(n) the real vector space of n x n hermitian matrices. For 1 less than or equal to r less than or equal to n/2, let G(r, r, n - 2r) be the inertia class of all matrices in S(n) (in H(n)) with exactly r positive, r negative, and n - 2r zero eigenvalues. If T is a linear transformation on S(n) (on H(n)) such that T maps G(r, r, n - 2r) into itself, we classify T provided that n greater than or equal to 5r.
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页码:61 / 77
页数:17
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