In a follow-up post, F_un and the braid group – a note of skepticism, arguments are collected against the claim that the d-string braid group should be invertible dxd matrices over the polynomials over F_un.

Yuri I. Manin : Cyclotomy and analytic geometry over F_un, arXived on September 9th, 2008 arXiv:0809.1564v1

Alain Connes and Caterina Consani : On the notion of geometry over F_un, arXived on September 17th,200b as arXiv:0809.2926

Alain Connes, Caterina Consani and Matilde Marcolli : Fun with F_un, arXived on June 14th, 2000 as arXiv:0806.2401

Nikolai Durov : New Approach to Arakelov Geometry, arXived April 16th, 2007 arXiv:0704.2030v1

Yuri I. Manin : The notion of dimension in geometry and algebra, Bull. AMS 43 (2006) 139-161.

Anton Deitmar : F_un schemes and toric varieties, arXived on August 7th,2006 as arXiv:math.NT/0608179

Anton Deitmar : Remarks on zeta-functions and K-theory over F_un, arXived on May, 16th 2006 as arXiv:math/0605429

M.J. Shai Haran : Non-additive geometry, Compositio Math. 143 (2007) 618-688

Bertrand Toen and Michel Vaquie : Au-dessous de Spec(Z), arXived on Sepember 29th, 2005 as arXiv:math/0509684