I. Gohberg et I. Koltracht, MIXED, COMPONENTWISE, AND STRUCTURED CONDITION NUMBERS, SIAM journal on matrix analysis and applications, 14(3), 1993, pp. 688-704
Mixed, componentwise, and structured condition numbers for continuous
maps in finite-dimensional spaces are introduced. For differentiable m
aps, convenient formulas for the estimation of such condition numbers
are given and illustrated on the example of Toeplitz matrices. Applica
tions to Vandermonde matrices are also presented.