TY - JOUR AB - We consider the problem of minimizing the spectral condition number of a positive definite matrix by completion: [GRAPHICS] where A is an n x n Hermitian positive definite matrix, B a p x n matrix and X is a free p x p Hermitian matrix. We reduce this problem to an optimization problem for a convex function in one variable. Using the minimal solution of this problem we characterize the complete set of matrices that give the minimum condition number. DA - 1994 DO - 10.1007/s002110050077 LA - eng IS - 1 M2 - 17 PY - 1994 SN - 0029-599X SP - 17-23 T2 - Numerische Mathematik TI - Minimizing the condition number of a positive definite matrix by completion UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-17749921 Y2 - 2024-11-22T07:50:38 ER -