Amy Grady

activity

20152019

collaborators

3 papers

math.CO2019

Tree Descent Polynomials: Unimodality and Central Limit Theorem

Amy Grady, Svetlana Poznanović

For a poset whose Hasse diagram is a rooted plane forest $F$ , we consider the corresponding tree descent polynomial $A_{F} (q)$ , which is a generating function of the number of descen…

math.CO2016

Graphical Mahonian Statistics on Words

Amy Grady, Svetlana Poznanović

Foata and Zeilberger defined the graphical major index, $maj_{U}^{'}$ , and the graphical inversion index, $inv_{U}^{'}$ , for words. These statistics are a generalization of…

math.CO2015

Cycle Domination, Independence and Irredundance in graphs

Amy Grady, Fiona Knoll, Renu Laskar +1

A set $S$ of vertices in a graph $G = (V, E)$ is called {\em cycle independent} if the induced subgraph $⟨ S ⟩$ is acyclic, and called {\em odd-cycle indepdendet} if $\l…