TY - JOUR
T1 - Structured Backward Errors for Structured KKT Systems
AU - Li , Xinxiu
AU - Liu , Xinguo
JO - Journal of Computational Mathematics
VL - 4
SP - 605
EP - 610
PY - 2004
DA - 2004/08
SN - 22
DO - http://doi.org/
UR - https://global-sci.org/intro/article_detail/jcm/10309.html
KW - Structured KKT system, Structured backward error, Normwise backward error.
AB - <p style="text-align: justify;">In this paper we study structured backward errors for some structured KKT systems. Normwise structured backward errors for structured KKT systems are defined, and computable formulae of the structured backward errors are obtained. Simple numerical examples show that the structured backward errors may be much larger than the unstructured ones in some cases.</p>