Ying Cao

collaborators

3 papers

math.CO2026

Partition-selected flow polynomials and associated arrangements

Beifang Chen, Ying Cao, Houshan Fu +1

We introduce a partition-selection method to generalize the flow, chromatic, and Tutte polynomials of a graph by restricting the standard edge subgraph expansions to subgraphs give…

math.CO2026

Ehrhart quasi-polynomials of rational polytopes by real dilations

Ying Cao, Beifang Chen

This paper is to study the Ehrhart function $L (P, t)$ of a rational $n$ -polytope $P$ , defined as the number of lattice points of dilated polytopes $tP$ with real numbers $t \geq 0$ .…

math.CO2026

Characteristic quasi-polynomials of truncated arrangements

Ying Cao, Houshan Fu

Given an (affine) integral arrangement $A$ in $R^{n}$ , the reduction of $A$ modulo an arbitrary positive integer $q$ naturally yields an arrangement $\ma…