activity
20042022
most citedRow-strict dual immaculate functions

11 citations · 19 across the 15 of their papers we have counts for

collaborators

20 papers

math.CO2022★ 1 cited

Pieri rules for skew dual immaculate functions

Elizabeth Niese, Sheila Sundaram, Stephanie van Willigenburg +1

In this paper we give Pieri rules for skew dual immaculate functions and their recently discovered row-strict counterparts. We establish our rules using a right-action analogue of…

math.CO2022★ 4 cited

0-Hecke modules for row-strict dual immaculate functions

Elizabeth Niese, Sheila Sundaram, Stephanie van Willigenburg +2

We introduce a new basis of quasisymmetric functions, the row-strict dual immaculate functions. We construct a cyclic, indecomposable 0-Hecke algebra module for these functions. Ou…

math.CO2022★ 11 cited

Row-strict dual immaculate functions

Elizabeth Niese, Sheila Sundaram, Stephanie van Willigenburg +2

We define a new basis of quasisymmetric functions, the row-strict dual immaculate functions, as the generating function of a particular set of tableaux. We establish that this defi…

math.CO2021

Deletion-contraction for a unified Laplacian and applications

Farid Aliniaeifard, Victor Wang, Stephanie van Willigenburg

We define a graph Laplacian with vertex weights in addition to the more classical edge weights, which unifies the combinatorial Laplacian and the normalised Laplacian. Moreover, we…

math.CO2020

Extended chromatic symmetric functions and equality of ribbon Schur functions

Farid Aliniaeifard, Victor Wang, Stephanie van Willigenburg

We prove a general inclusion-exclusion relation for the extended chromatic symmetric function of a weighted graph, which specializes to (extended) -deletion, and we give two met…

math.CO2019

Chromatic Posets

Samantha Dahlberg, Adrian She, Stephanie van Willigenburg

In 1995 Stanley introduced the chromatic symmetric function of a graph , whose -positivity and Schur-positivity has been of large interest. In this paper we study the r…