Figure 3.

Results for heterogeneous k and homogeneous a with N = 10, k₀(x) = 1 + 0.1(x − 5)² and a₀(x) = 0. (a,b) Characteristic diagram for spring boundary position evolution for 0 ≤ t ≤ 16.25, with m = 4 so that every fourth trajectory represents a cell boundary. Colour denotes (a) cell density, (b) cell stiffness. In (a,b), black lines and dots represent times for snapshots in (c–h). (c,e,g) Cell density snapshots at t = 0, 2.5, 15. (d,f ,h) Cell stiffness snapshots at t = 0, 2.5, 15. In (c–h) lines display results for N = 10 with m = 1, 2, 4 and continuum system. (Online version in colour.)