Figure 1From: A method for determining the robustness of bio-molecular oscillator modelsStructure of the box B δ * ( K 0 ). The box is in the area where ℛ(K) > 0 and ℛ vanishes at on the boundary of the box. The dashed curve shows a path Γ in D\B δ * (K0) on which ℛ(K) < 0.Back to article page