94 citations · 349 across the 46 of their papers we have counts for
4 papers · 1 filter
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…