Arrangements of Hyperplanes, Higher Braid Groups and Higher Bruhat Orders
Arrangements of Hyperplanes, Higher Braid Groups and Higher Bruhat Orders
In conclusion we would like to thank V. A. Hinich, who explained to us the notion of n-category used in section 3, and 0. V. Ogievetsky who helped us to prove the main theorem of section 2. § 1. Discriminantal arrangements and higher braid groups