System structure and singular control

Structural Invariants of Linear Multivariable Systems

A. Stephen Morse · SIAM Journal on Control · 1973 · 433 citations

Engineering, Mathematics, Systems Engineering +17

Almost invariant subspaces: An approach to high gain feedback design--Part I: Almost controlled invariant subspaces

Jan C. Willems · IEEE Transactions on Automatic Control · 1981 · 400 citations

Engineering, Mathematics, Systems Engineering +17

Strong detectability and observers

M. L. J. Hautus · Linear Algebra and its Applications · 1983 · 371 citations · Full text

Medicine, Physics, Psychology +8

A contribution to matrix quadratic equations

V. Kučera · IEEE Transactions on Automatic Control · 1972 · 347 citations

Natural Sciences, Mathematics, Systems Engineering +14

The maximally achievable accuracy of linear optimal regulators and linear optimal filters

H. Kwakernaak, R. Sivan · IEEE Transactions on Automatic Control · 1972 · 282 citations · Full text

Natural Sciences, Mathematics, Optimization +15