Block LU factors of generalized companion matrix pencils

被引：7
作者：
Amiraslani, A.
Aruliah, D. A.
Corless, R. M.
机构：
[1] Univ Calgary, Dept Math & Stat, Calgary, AB T2N 1N4, Canada
[2] Univ Ontario Inst Technol, Fac Sci, Oshawa, ON L1H 7K4, Canada
[3] Univ Western Ontario, Dept Appl Math, London, ON N6A 5B7, Canada
来源：
THEORETICAL COMPUTER SCIENCE | 2007年 / 381卷 / 1-3期
关键词：
matrix polynomials; polynomial eigenvalues; block LU factoring;
D O I：
10.1016/j.tcs.2007.04.019
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
We present formulas for computations involving companion matrix pencils as may arise in considering polynomial eigenvalue problems. In particular, we provide explicit companion matrix pencils for matrix polynomials expressed in a variety of polynomial bases including monomial, orthogonal, Newton, Lagrange, and Bernstein/Bezier bases. Additionally, we give a pair of explicit LU factors associated with each pencil and a prescription for block pivoting when required. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：134 / 147
页数：14
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