The contourplots of the two fixed points () of as functions of and . The intersection of the white areas in the two density plots corresponds to regions where no perturbative fixed point exists. The dashed black (red) curve (line) represents in each plot.
The contourplot of the second root obtained from , representing a fixed point value , as a function of and . Here we have enlarged the region around . The dashed black line represents .
The representative RG flows in the various regions of the plane. The black dots represent the finite fixed points when they exist. The contour shading conveys the magnitudes of the flow vector in different regions.