@misc{Kaczorek_Tadeusz_(1932-_)_Externally,
 author={Kaczorek, Tadeusz (1932- )},
 howpublished={online},
 publisher={Zielona Góra: Uniwersytet Zielonogórski},
 language={eng},
 abstract={Notions of externally and internally positive singular discrete-time linear systems are introduced. It is shown that a singular discrete-time linear system is externally positive if and only if its impulse response matrix is non-negative.},
 abstract={Sufficient conditions are established under which a single-output singular discrete-time system with matrices in canonical forms is internally positive. It is shown that if a singular system is weakly positive (all matrices E, A, B, C are non-negative), then it is not internally positive.},
 type={artykuł},
 title={Externally and internally positive singular discrete-time linear systems},
 keywords={externally, internally, positive, singular, linear, system},
}