Paper VI: Transfer Semigroups: Stochastic, Bayesian, Fractional, and PDE Realizations

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28 \node[font=\small,align=center,font=\scriptsize] at (5.05,0.1) {$z>0$};
29 \node[font=\small,align=center,anchor=west,font=\scriptsize] at (0.8,4.3) {resolvent coefficient};
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32 \node[font=\small,align=center] at (11.7,3.7) {exact: $\dfrac{z+1}{z(z+2)}$};
33 \node[font=\small,align=center] at (11.7,2.5) {omit hidden state: $\dfrac1{z+1}$};
34 \node[font=\small,align=center,font=\small] at (11.7,1) {The pole at zero survives\\through hidden feedback.};
35 \end{tikzpicture}

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