Figure 4

Lateral inhibition model. Comparison between the lateral inhibition models of Collier et al. [22] that employed hexagonal cells and the models used in this work with naturally shaped cells. In both models, P _d (σ) (Delta) is driven to the opposite of P _n (σ) (Notch) within each cell, while cell-cell communication across contacting membranes regulates P _n (σ). The length of the common border between σ and ρ is l_{ρ, σ}, which is the count of all 8-connected lattice sites between and ρ, and σ, $g(x)=\frac{1}{(1+x^2)},f(x)=\frac{x^2}{(1+x^2)}$ and n(σ) returns the set of cells that are direct neighbors of σ.