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2 votes
3 answers
1k views

Concrete works by Alexandre Grothendieck, other than Dessin d'Enfants?

For me "Dessin d'Enfants" by Alexandre Grothendieck is the more concrete research work he has done. I would like to know if there are others. When he was teaching at Montpellier University (...
Al-Amrani's user avatar
5 votes
0 answers
230 views

Minimal algebraic degree of symmetric unit distance embedding of Heawood graph

I'm looking at embeddings of the Heawood graph in the plane as unit distance graph. Apparently the first such embedding was given by Gerbracht, 2009 and has algebraic (over the rationals) coordinates ...
Moritz Firsching's user avatar