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.
This is the second rule - a hexagon finding rule.
I believe that anyone who thinks that the restricted betterness relation is strongly separable across people should also accept the hexagon condition in such cases.
Some of the numerical computations demonstrate that hexagons may lose their stability to rolls.
We have found both steady and periodic solutions, involving rolls, squares and hexagons.
This is the reason why it is modelled as a hexagon instead.
Scattered light would be expected to reduce the effective contrast of the center hexagon's modulation and 0or to increase the time-averaged mean luminance.
As the luminance of the surrounding hexagons was increased, the amplitude and implicit time of the center-modulated hexagon's response decreased.
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