8 citations · 20 across the 20 of their papers we have counts for
16 papers · 1 filter
Finite permutation groups that act with fixity 4
Barbara Baumeister, Paula Hähndel, Kay Magaard +2
Motivated by the theory of Riemann surfaces and specifically the significance of Weierstrass points, we prove general structure results about finite groups that have a faithful tra…
On the maximal overgroups of Sylow subgroups of finite groups
Barbara Baumeister, Timothy C. Burness, Robert M. Guralnick +1
In this paper, we determine the finite groups with a Sylow -subgroup contained in a unique maximal subgroup. The proof involves a reduction to almost simple groups, and our main…
Finite simple permutation groups acting with fixity 4
Barbara Baumeister, Paula Hähndel, Kay Magaard +2
Motivated by the theory of Riemann surfaces and specifically the significance of Weierstrass points, we classify all finite simple groups that have a faithful transitive action wit…
Isomorphism and non-isomorphism for interval groups of type D_n
Barbara Baumeister, Derek F. Holt, Georges Neaime +1
We consider presentations that were derived in \cite{BaumeisterNeaimeRees} for the interval groups associated with proper quasi-Coxeter elements of the Coxeter group . We u…
Interval groups related to finite Coxeter groups, Part II
Barbara Baumeister, Derek F. Holt, Georges Neaime +1
We provide a complete description of the presentations of the interval groups related to quasi-Coxeter elements in finite Coxeter groups. In the simply laced cases, we show that ea…
Non-crossing partitions
Barbara Baumeister, Kai-Uwe Bux, Friedrich Götze +2
Non-crossing partitions have been a staple in combinatorics for quite some time. More recently, they have surfaced (sometimes unexpectedly) in various other contexts from free prob…