activity
20212026
most citedPolynomial -binding functions for -broom-free graphs

3 citations · 4 across the 7 of their papers we have counts for

collaborators

7 papers

math.CO2026

Improved bounds on the oriented diameter of planar triangulations

Xiaonan Liu

The oriented diameter of a connected bridgeless graph , denoted by , is the minimum diameter among all strong orientations of . We st…

math.CO2022

Reconstruction and Edge Reconstruction of Triangle-free Graphs

Alexander Clifton, Xiaonan Liu, Reem Mahmoud +1

The Reconstruction Conjecture due to Kelly and Ulam states that every graph with at least 3 vertices is uniquely determined by its multiset of subgraphs . Let $…

math.CO2021

Planar Turán Numbers of Cycles: A Counterexample

Daniel W. Cranston, Bernard Lidický, Xiaonan Liu +1

The planar Turan number is the largest number of edges in an -vertex planar graph with no -cycle. For , upper…

math.CO2021★ 3 cited

Polynomial -binding functions for -broom-free graphs

Xiaonan Liu, Joshua Schroeder, Zhiyu Wang +1

For any positive integer , a \emph{-broom} is a graph obtained from by subdividing an edge once. In this paper, we show that, for graphs without induced -b…

math.CO2021

Counting Hamiltonian cycles in planar triangulations

Xiaonan Liu, Zhiyu Wang, Xingxing Yu

Hakimi, Schmeichel, and Thomassen in 1979 conjectured that every -connected planar triangulation on vertices has at least Hamiltonian cycles, with equality…

math.CO2021★ 1 cited

Number of Hamiltonian cycles in planar triangulations

Xiaonan Liu, Xingxing Yu

Whitney proved in 1931 that 4-connected planar triangulations are Hamiltonian. Hakimi, Schmeichel, and Thomassen conjectured in 1979 that if is a 4-connected planar triangulati…

math.CO2021

Hamiltonian paths and cycles in some 4-uniform hypergraphs

Guanwu Liu, Xiaonan Liu

In 1999, Katona and Kierstead conjectured that if a -uniform hypergraph on vertices has minimum co-degree , i.e., each set of …