Generalized condition numbers and a problem on absolute norms
 
 
Description:  The condition number of a square matrix measures the sensitivity of the solution of a system of linear equations with that matrix - or of the inverse of the matrix - with respect to perturbations in the data. The ordinary condition number is defined in terms of the spectral norm. Here we study condition numbers using different norms in the space of matrices, and we investigate the cases where perfect conditioning occurs. In this study we are led to an open question concerning absolute norms.
Area(s):
Date:  2006-03-28
Start Time:   14:30
Speaker:  João Queiró (CMUC, U. Coimbra)
Place:  5.5
Research Groups: -Algebra and Combinatorics
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