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About K-Positivity Properties of Time-Invariant Linear Systems Subject to Point Delays
2007
Journal of Inequalities and Applications
This paper discusses nonnegativity and positivity concepts and related properties for the state and output trajectory solutions of dynamic linear time-invariant systems described by functional differential equations subject to point time delays. The various nonnegativities and positivities are introduced hierarchically from the weakest one to the strongest one while separating the corresponding properties when applied to the state space or to the output space as well as for the zero-initial
doi:10.1155/2007/25872
fatcat:33xtyft6ejdkjpljqzfycxvyqe