English

Generalized Bijective Maps between $G$-Parking Functions, Spanning Trees, and the Tutte Polynomial

Combinatorics 2020-09-15 v2

Abstract

We introduce an object called a tree growing sequence (TGS) in an effort to generalize bijective correspondences between GG-parking functions, spanning trees, and the set of monomials in the Tutte polynomial of a graph GG. A tree growing sequence determines an algorithm which can be applied to a single function, or to the set PG,q\mathcal{P}_{G,q} of GG-parking functions. When the latter is chosen, the algorithm uses splitting operations - inspired by the recursive defintion of the Tutte polynomial - to iteratively break PG,q\mathcal{P}_{G,q} into disjoint subsets. This results in bijective maps τ\tau and ρ\rho from PG,q\mathcal{P}_{G,q} to the spanning trees of GG and Tutte monomials, respectively. We compare the TGS algorithm to Dhar's algorithm and the family described by Chebikin and Pylyavskyy. Finally, we compute a Tutte polynomial of a zonotopal tiling using analogous splitting operations.

Keywords

Cite

@article{arxiv.2005.06456,
  title  = {Generalized Bijective Maps between $G$-Parking Functions, Spanning Trees, and the Tutte Polynomial},
  author = {Carrie Frizzell},
  journal= {arXiv preprint arXiv:2005.06456},
  year   = {2020}
}

Comments

17 pages, 9 figures; pseudocode added in Section 2.1, proof of Theorem 2.2.4 revised, several typos corrected

R2 v1 2026-06-23T15:31:20.880Z