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SYSTEMS ENGINEERING

• NCGB Does Singular Perturbation Well
• The most basic control problem (Demo on ) April 1999
• Singular Perturbation for the infostate equation in postscript or PDF (An article) April 1999
Helton and Kronewitter
• Factoring systems
• Minimal factorization (Theorem of Bart, Gohberg, Kaashoek, Van Dooren) Jun 96
Solution by Helton, Schneider, Stankus and Yoshinobu
• Model reduction problems
• Balanced truncation Jun 96
Contributed by Keith Glover
Solutions by Helton, Schneider and Stankus
• H-infinity control
• Derivation of the X and Y Ricatti equations Jun 96
Solution by Helton, Schneider, Stankus and Yoshinobu
• Orbit problems
• Orbits of U(n,n) acting on Mn Jun 96
Contributed by Nicholas Young
Solution by Helton, Schneider and Stankus
• Other