| Nonarchimedean coamoeba of a line in space | |
|
|
Here is the non-Archimedean coamoeba of the line
The tropical variety of the line has four rays in the coordinate directions—their initial varieties give the four boundary edges of this coamoeba. There are two trivalent (hence planar) vertices—their initial varieties give two pairs of triangles, which are coamoeba of planar lines. Lastly, there is one internal edge whose initial variety gives the line common to the two sets of triangles. |
 Eight fundamental domains. |
