A note on properties of condition numbers

✍ Scribed by Clovis C. Gonzaga; Hugo J. Lara

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 221 KB
• Volume: 261
• Category: Article
• ISSN: 0024-3795
• DOI: 10.1016/s0024-3795(96)00409-0

✦ Synopsis

The condition numbers described by Stewart, Todd, and others for a matrix A are given by the suprema of the norms of all the oblique projection operators respectively on the image space of AT and the null space of A. This paper shows that these two numbers coincide.