activity
19982023
most citedAn Introduction to the Discharging Method via Graph Coloring

8 citations · 33 across the 46 of their papers we have counts for

collaborators

57 papers

math.CO2023

Trees with at least vertices are -reconstructible

Alexandr V. Kostochka, Mina Nahvi, Douglas B. West +1

The -deck of an -vertex graph is the multiset of (unlabeled) subgraphs obtained from it by deleting vertices. An -vertex graph is -reconstructible if i…

math.CO2023

Bounds for eccentricity-based parameters of graphs

Yunfang Tang, Xuli Qi, Douglas B. West

The \emph{eccentricity} of a vertex in a graph , denoted by , is the maximum distance from to other vertices in . We study extremal problems for the average e…

math.CO2022

-Reconstructibility of Weakly Distance-Regular Graphs

Douglas B. West, Xuding Zhu

A graph is -reconstructible if it is determined by its multiset of induced subgraphs obtained by deleting vertices. We prove that strongly regular graphs with at least…

math.CO2021

Some new results on bar visibility of digraphs

Yuanrui Feng, Jun Ge, Douglas B. West +1

Visibility representation of digraphs was introduced by Axenovich, Beveridge, Hutch\-inson, and West (\emph{SIAM J. Discrete Math.} {\bf 27}(3) (2013) 1429--1449) as a natural gene…

math.CO2020

On reconstruction of graphs from the multiset of subgraphs obtained by deleting vertices

Alexandr V. Kostochka, Douglas B. West

The Reconstruction Conjecture of Ulam asserts that, for , every -vertex graph is determined by the multiset of its induced subgraphs with vertices. The conjecture…

math.CO2020

The Number of Perfect Matchings in Möbius Ladders and Prisms

R. S. Lekshmi, Douglas B. West

The 1970s conjecture of Lovász and Plummer that the number of perfect matchings in any -regular graph is exponential in the number of vertices was proved in 2011 by Esperet, Kar…