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Zariski theorems and diagrams for braid groups

David Bessis
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Abstract

Empirical properties of generating systems for complex reflection groups and their braid groups have been observed by Orlik-Solomon and Broué-Malle-Rouquier, using Shephard-Todd classification. We give a general existence result for presentations of braid groups, which partially explains and generalizes the known empirical properties. Our approach is invariant-theoretic and does not use the classification. The two ingredients are Springer theory of regular elements and a Zariski-like theorem.

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David Bessis. 2001-01-17. Zariski theorems and diagrams for braid groups. https://doi.org/10.1007/s002220100155

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