SOME ALGEBRAIC PROBLEMS IN CONNECTION WITH GENERAL EIGENVALUE ALGORITHMS

被引:28
作者
ELSNER, L
机构
[1] Fakultät für Mathematik Universität Bielefeld, 4800 Bielefeld 1
关键词
D O I
10.1016/0024-3795(79)90175-7
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Two real matrices A,B are S-congruent if there is a nonsingular upper triangular matrix R such that A = RTBR. This congruence relation is studied in the set of all nonsingular symmetric and that of all skew-symmetric matrices. Invariants and systems of representation are give. The results are applied to the question of decomposability of a matrix in a product of an isometry and an upper triangular matrix, a problem crucial in eigenvalue algorithms. © 1979.
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页码:123 / 138
页数:16
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