The explicit structure of inner matrices and its application in H/sup infinity /-optimization

An expression for inner matrices is obtained which allows a detailed investigation of their structure. The expression is used to solve the H/sup infinity /-interpolation problem in a simple way. A solution to this problem is obtained explicitly in terms of interpolation parameters without solving any equation. It is found that the resulting solution encounters a reduction in its order at the critical point, and the characteristics of the resulting reduced-order solution are investigated.<
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