Anton Sherwood schreef:
> hermans wrote:
> 
>> Barth's SEXTIC is a surface with 65 double points. It's interesting to 
>> know that 20 of these double points are the vertices of a regular 
>> dodecahedron and 30 other double points are the midpoints of the edges 
>> of another regular dodecahedron. 
> 
> 
> And the other five?
> 
I looked at the original paper by W. Barth about his sextic (and decic) 
surfaces in the Journal of Algebraic Geometry, 5, 1996 and I learned 
that the other 15 nodes are located at infinity.

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