1999 Publications

  • Ill-conditioned convex processes and linear inequalities
    A.S. Lewis, Mathematics of Operations Research 24 (1999), 829-834.

  • Lidskii's theorem via nonsmooth analysis
    A.S. Lewis, SIAM Journal on Matrix Analysis and Applications 21 (1999), 379-381.

  • Nonsmooth analysis of eigenvalues
    A.S. Lewis, Mathematical Programming 84 (1999), 1-24.

  • The Clarke and Michel-Penot subdifferentials of the eigenvalues of a symmetric matrix
    J.-B. Hiriart-Urruty and A.S. Lewis, Computational Optimization and Applications 13 (1999), 13-23.