Brás, Carmo; Hager, William; Júdice, Joaquim - In: TOP: An Official Journal of the Spanish Society of … 20 (2012) 3, pp. 791-809
Techniques for estimating the condition number of a nonsingular matrix are developed. It is shown that Hager’s 1-norm condition number estimator is equivalent to the conditional gradient algorithm applied to the problem of maximizing the 1-norm of a matrix-vector product over the unit sphere...