Software

FORTRAN

• Computation of the L_∞-Norm for Descriptor Systems
• Computation of the Eigenvectors of Imaginary Eigenvalues of Skew-Hamiltonian/Hamiltonian Matrix Pencils
• SHHEIG: Routines for Skew-Hamiltonian/Hamiltonian Eigenvalue Problems

MATLAB

• Computation of the H_∞-/L_∞-Norm for Large-Scale Descriptor Systems

  MATLAB implementations of various algorithms for the computation of the H_∞-/L_∞-norm for large-scale descriptor systems. Three methods have been implemented to determine the norm value. The first two implementations were tested with MATLAB 2012a and the third one with MATLAB 2016a under Linux and should work with a reasonably current version of MATLAB.

  • Method 1: Computation of the H_∞-Norm via Optimization over Structured Pseudospectra
  • Method 2: Computation of the L_∞-Norm via Optimization on Level Sets
  • Method 3: Computation of the L_∞-Norm via Interpolation

• H_∞-Control and Optimization
  • Semi-Active H_∞-Damping Optimization