Quotients of certain braidlike groups that are of geometric interest

Eduard Looijenga, Utrecht University

The braidlike groups in question are the socalled affine Artin groups. We show that these possess certain remarkable quotient groups, some of which (e.g., the affine completions of type E6 , E7 , E8 ) have geometric relevance in the sense that they appear as fundamental groups of familiar moduli spaces.

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