Barbara Baumeister

works on

Artin groups 1 braid groups 1 coxeter groups 1 interval groups 1 mapping class groups 1

From the 1 of 3 linked papers with an AI index.

collaborators

3 papers

math.GR2026

The braid group Bn is not a quotient of a quasi-Coxeter interval group of type Dn

Barbara Baumeister, Luis Paris, Sarah Rees

The paper shows that for n ≥ 5, a certain interval group linked to a quasi‑Coxeter element in the Dₙ Coxeter group cannot map onto the n‑strand braid group, giving a new proof that…

math.RT2025

Non-crossing partitions for exceptional hereditary curves

Barbara Baumeister, Igor Burban, Georges Neaime +1

We introduce a new class of reflection groups associated with the canonical bilinear lattices of Lenzing, which we call reflection groups of canonical type. The main result of this…

math.GR2025

The hyperbolic cover of an elliptic Weyl group

Barbara Baumeister, Patrick Wegener

In this paper, we study in detail the hyperbolic covers $W ~$ and $W^$ of an elliptic Weyl system introduced by Saito. We show that they are isomorphic and also isomorph…