## Permanence of a discrete $$N$$-species cooperation system with time delays and feedback controls.(English)Zbl 1113.93063

Summary: A discrete $$N$$-species cooperation system with time delays and feedback controls is proposed. By applying the comparison theorem of difference equation, sufficient conditions are obtained for the permanence of the system.

### MSC:

 93C30 Control/observation systems governed by functional relations other than differential equations (such as hybrid and switching systems) 93B52 Feedback control 93D99 Stability of control systems
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### References:

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