Figure 3.

Cell repartition study in the vicinity of fixed points ${ℱ}_2$ in the domain of dynamical stability (see Fig. (1b)). In (a,b), results of the linear stability analysis with variation of the wave number k revealed by C₀. In (a), the dynamical parameters are: ${ℱ}_2$ = (0.2D₂, D₂, 0,0.2), with α = 1, D_a = D_m = 1 and B = −5. in (b) the same parameter but with B = −20 (see Eq. (16) of the Appendix C). The Byrne-Preziozi potential^41,42 is selected with the following values α_D = 2, m = 1, D_b = 0.6 and ε_D = 0.1 in Eq. (9). Phase separation of tumor cell CSC or DC with the surrounding tissue. In (c): Labyrinth-like pattern for {d, α} = {0.2, 1} and consequentially {D₂, S₂} ~ {0.23, 0.045}. (d): Honeycomb-like pattern for {d,α} = {0.15,0.8} and consequentially {D₂, S₂} ~ {0.4, 0.06}.