activity
20032025
most citedReciprocity Algebras and Branching for Classical Symmetric Pairs

22 citations · 38 across the 16 of their papers we have counts for

collaborators

16 papers

math.RT2025

-type multiplicities in degenerate principal series via Howe duality

Mark Colarusso, William Q. Erickson, Andrew Frohmader +1

Let be one of the complex classical groups , , or . Let be the block diagonal embedding ${\rm O}_{k_1} \times \cdots \time…

math.RT2022

Graphical methods and rings of invariants on the symmetric algebra

Rebecca Bourn, William Q. Erickson, Jeb F. Willenbring

Let be a complex classical group, and let be its defining representation (possibly plus a copy of the dual). A foundational problem in classical invariant theory is to writ…

math.RT2020

Contingency tables and the generalized Littlewood-Richardson coefficients

Mark Colarusso, William Q. Erickson, Jeb F. Willenbring

The Littlewood-Richardson coefficients give the multiplicity of an irreducible polynomial -representation in the tensor product of polynomial represe…

math.CO2019★ 10 cited

Expected value of the one-dimensional Earth Mover's Distance

Rebecca Bourn, Jeb F. Willenbring

From a combinatorial point of view, we consider the Earth Mover's Distance (EMD) associated with a metric measure space. The specific case considered is deceptively simple: Let the…

math.RT2018

Branching from the General Linear Group to the Symmetric Group and the Principal Embedding

Alexander Heaton, Songpon Sriwongsa, Jeb F. Willenbring

Let S be a principally embedded sl_2 subalgebra in sl_n for n > 2. A special case of results of the third author and Gregg Zuckerman implies that there exists a positive integer b(…

math.RT2016

Lowest sl(2)-types in sl(n)-representations with respect to a principal embedding

Hassan Lhou, Jeb F. Willenbring

Fix n>2. Let s be a principally embedded sl(2)-subalgebra in sl(n). A special case of results of the second author and Gregg Zuckerman implies that there exists a positive integer…