94 citations · 349 across the 46 of their papers we have counts for
61 papers
Hopf algebras from poset growth models
Karen Yeats, Stav Zalel
We give a framework for growth models on posets which simultaneously generalizes the Classical Sequential Growth models for posets from causal set theory and the tree growth models…
Reconstructing a bijection on the level of Le diagrams
Simone Hu, Karen Yeats
Lukowiski, Parisi, and Williams formulated the T-duality map of string theory at a purely combinatorial level as a map on decorated permutations. We combinatorially describe this m…
Feynman symmetries of the Martin and invariants of regular graphs
Erik Panzer, Karen Yeats
For every regular graph, we define a sequence of integers, using the recursion of the Martin polynomial. This sequence counts spanning tree partitions and constitutes the diagonal…
Tubings, chord diagrams, and Dyson--Schwinger equations
Paul-Hermann Balduf, Amelia Cantwell, Kurusch Ebrahimi-Fard +3
We give series solutions to single insertion place propagator-type systems of Dyson--Schwinger equations using binary tubings of rooted trees. These solutions are combinatorially t…
Some results on Landau poles and Feynman diagram cut structure by Hopf algebra
William Dallaway, Karen Yeats
We investigate a system of differential equations for the beta function of massless scalar theory and continue the combinatorial investigation of the cut structure of Feynman…
Sequences of Trees and Higher-Order Renormalization Group Equations
William T. Dugan, Loïc Foissy, Karen Yeats
We define a notion of higher order renormalization group equation and investigate when a sequence of trees satisfies such an equation. In the strongest sense, the sequence of trees…