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Fig. 2 | BMC Bioinformatics

Fig. 2

From: Ideal adaptive control in biological systems: an analysis of \(\mathbb {P}\)-invariance and dynamical compensation properties

Fig. 2

Phase portraits with different values of s, b and c show that the stable equilibrium \(E_2\) has almost the same region of attraction in all cases but the trajectories differ. The region of attraction is determined by \(E_1\). (a) The phase portrait for parameters 48. (b) The phase portrait for parameters 48, except s that is changed from 0.25 to 1.5. (c) The phase portrait for parameters 48, except b that is changed from 0.3 to 0.6. (d) The phase portrait for parameters 48, except c that is changed from 2 to 4

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