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Abstract.
This paper examines the limitations imposed by Right Half Plane (RHP)
zeros and poles in multivariable feedback systems. The main result is
to provide lower bounds on || WXV (s) ||infinity where X
is S, SI , T or TI (sensitivity
and complementary sensitivity). Previously derived lower bounds on the
H-infinity-norm of S and T are thus generalized to the
case with matrix-valued weights, including bounds for reference
tracking, disturbance rejection, and input usage.