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$$H_\infty$$ and positive-real control for linear neutral delay systems. (English) Zbl 1008.93033
The authors consider the $$H_\infty$$ and positive-real control problems for linear neutral delay systems. Based on the linear matrix inequalities approach, sufficient conditions for the solvability of these two problems are presented.
These results encompass earlier ones for delay systems.

##### MSC:
 93B36 $$H^\infty$$-control 93C23 Control/observation systems governed by functional-differential equations 15A39 Linear inequalities of matrices 34K40 Neutral functional-differential equations
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