DocumentCode :
829854
Title :
Comments on "The numerical solution of ATQ+QA= -C"
Author :
Barraud, A.
Author_Institution :
E.N.S.E.G.P., Saint Martin d´Heres, France
Volume :
24
Issue :
4
fYear :
1979
fDate :
8/1/1979 12:00:00 AM
Firstpage :
671
Lastpage :
672
Abstract :
It is pointed out that the proposed algorithm in the above paper is correct only if the spectrum of 
is real. A more general and simpler algorithm is developed which converges to the matrix sign function of whatever the spectrum of may be, and thus answers the question. The numerical stability of the algorithms is discussed and some results are quoted.
is real. A more general and simpler algorithm is developed which converges to the matrix sign function of whatever the spectrum of may be, and thus answers the question. The numerical stability of the algorithms is discussed and some results are quoted.Keywords :
Convergence; Eigenvalues and eigenfunctions; Iterative algorithms; Newton method;
fLanguage :
English
Journal_Title :
Automatic Control, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9286
Type :
jour
DOI :
10.1109/TAC.1979.1102083
Filename :
1102083
Link To Document :
