Changxin Ding

most citedThe rotor-routing torsor and the Bernardi torsor disagree for every non-planar ribbon graph

1 citations · 2 across the 2 of their papers we have counts for

collaborators

4 papers

math.CO2023

The Jacobian of a Sixth-Root-of-Unity Matroid

Matthew Baker, Changxin Ding, Xu Zhuang

The Jacobian group (also called the sandpile group, Picard group, or critical group) of a graph or, more generally, of a regular matroid has been well studied. Sixth-root-of-unity…

math.CO2023★ 1 cited

A framework unifying some bijections for graphs and its connection to Lawrence polytopes

Changxin Ding

Let $G$ be a connected graph. The Jacobian group (also known as the Picard group or sandpile group) of $G$ is a finite abelian group whose cardinality equals the number of spanning…

math.CO2021

Geometric bijections between spanning subgraphs and orientations of a graph

Changxin Ding

Let $G$ be a connected finite graph. Backman, Baker, and Yuen have constructed a family of explicit and easy-to-describe bijections $g_{σ, σ^{*}}$ between spanning trees of $G$ and $(…

math.CO2021★ 1 cited

The rotor-routing torsor and the Bernardi torsor disagree for every non-planar ribbon graph

Changxin Ding

Let $G$ be a ribbon graph. Matthew Baker and Yao Wang proved that the rotor-routing torsor and the Bernardi torsor for $G$ , which are two torsor structures on the set of spanning t…