화학공학소재연구정보센터
IEEE Transactions on Automatic Control, Vol.40, No.3, 500-502, 1995
Boundaries of Conditional Quadratic-Forms - A Comment on Stabilization via Static Output-Feedback
Motivated by the above paper, this note considers the boundaries of a quadratic form with all possible constraints over a given subspace. Essential upper (or lower) bounds are presented provided they exist. It mends a mild incompleteness in the proof of the main result.