Figure 1From: A selection criterion for patterns in reaction–diffusion systemsSolutions of u'' ( x ) + 4 u ( x ) [1 - u ( x )2] - b = 0, the stationary shadow equation in one dimension. Upper panels show associated potentials, while lower panels show stationary solutions of the shadow equation. Column cases correspond to (left) b = -2, (middle) b = 0, (right) b =2. Inset figures of upper panels depict qualitative homoclinics (left and right panels) and symmetric transitions (center panel).Back to article page