22 citations · 57 across the 20 of their papers we have counts for
21 papers
Quasisymmetric functions distinguishing trees
Jean-Christophe Aval, Karimatou Djenabou, Peter R. W. McNamara
A famous conjecture of Stanley states that his chromatic symmetric function distinguishes trees. As a quasisymmetric analogue, we conjecture that the chromatic quasisymmetric funct…
Positivity among P-partition generating functions
Nathan R. T. Lesnevich, Peter R. W. McNamara
We seek simple conditions on a pair of labeled posets that determine when the difference of their -partition enumerators is -positive, i.e., positive in Gessel's fundamen…
Refining the bijections among ascent sequences, (2+2)-free posets, integer matrices and pattern-avoiding permutations
Mark Dukes, Peter R. W. McNamara
The combined work of Bousquet-Mélou, Claesson, Dukes, Jelínek, Kitaev, Kubitzke and Parviainen has resulted in non-trivial bijections among ascent sequences, (2+2)-free posets, upp…
Enumeration of colored Dyck paths via partial Bell polynomials
Daniel Birmajer, Juan B. Gil, Peter R. W. McNamara +1
We consider a class of lattice paths with certain restrictions on their ascents and down steps and use them as building blocks to construct various families of Dyck paths. We let e…
Commutation and normal ordering for operators on symmetric functions
Emmanuel Briand, Peter R. W. McNamara, Rosa Orellana +1
We study the commutation relations and normal ordering between families of operators on symmetric functions. These operators can be naturally defined by the operations of multiplic…
The structure of the consecutive pattern poset
Sergi Elizalde, Peter R. W. McNamara
The consecutive pattern poset is the infinite partially ordered set of all permutations where if has a subsequence of adjacent entries in the same relative order as the…