T. Kyle Petersen

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math.CO2007

Affine descents and the Steinberg torus

Kevin Dilks, T. Kyle Petersen, John Stembridge

Let $W ⋉ L$ be an irreducible affine Weyl group with Coxeter complex $Σ$ , where $W$ denotes the associated finite Weyl group and $L$ the translation subgroup. The Steinberg to…

math.CO2005

Enriched $P$ -partitions and peak algebras

T. Kyle Petersen

We develop a more general view of Stembridge's enriched $P$ -partitions and use this theory to outline the structure of peak algebras for the symmetric group and the hyperoctahedral…

Affine descents and the Steinberg torus

Enriched P-partitions and peak algebras

Enriched $P$ -partitions and peak algebras