SearcharxivSearch

arXiv subjects

Aisling Kenny

Publications and source records attributed to Aisling Kenny.

2 recordsLinked to original sources

Climbing elements in finite coxeter groups

We define the notion of a climbing element in a finite real reflection group relative to a total order on the reflection set and we characterise these elements in the case where the total order arises from a bipartite Coxeter element.

math.CO

Geometrically Constructed Bases for Homology of Non-Crossing Partition Lattices

For any finite, real reflection group $W$, we construct a geometric basis for the homology of the corresponding non-crossing partition lattice. We relate this to the basis for the homology of the corresponding intersection lattice introduced by Björner and Wachs in \cite{BW} using a general construction of a generic affine hyperplane for the central hyperplane arrangement defined by $W$.

math.CO