The resulting cells are all hexagons, except that the cells corresponding to the 12 vertices of the original icosahedron are pentagons.
Only the center hexagon (modulated) shows a response.
We consider a finite-dimensional kernel by making use of experimental observations of spatially periodic rolls, squares and hexagons.
Furthermore, we demonstrate computationally that there are other stable patterns composed of both rolls and hexagons.
The final pattern is composed of perfect hexagons.
The last sorts of polygon we mention here are equi-angled hexagons.
We focus on the region 0 < < 2/3 where fronts connect stable hexagons with unstable rolls and the trivial rest state.
Finally, between (iii) and (iv), the mixed modes become false hexagons in a transcritical bifurcation at the hexagons.
