activity
20192023
most citedCops and robbers on directed and undirected abelian Cayley graphs

10 citations · 34 across the 20 of their papers we have counts for

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Showing 2021Show all

7 papers · 1 filter

math.CO2021

Single-conflict colorings of degenerate graphs

Peter Bradshaw, Tomáš Masařík

We consider the single-conflict coloring problem, a graph coloring problem in which each edge of a graph receives a forbidden ordered color pair. The task is to find a vertex color…

math.CO2021

Hat guessing number and guaranteed subgraphs

Peter Bradshaw

The hat guessing number of a graph is a parameter related to the hat guessing game for graphs introduced by Winkler. In this paper, we show that graphs of sufficiently large hat gu…

math.CO2021

A rainbow connectivity threshold for random graph families

Peter Bradshaw, Bojan Mohar

Given a family of graphs on a common vertex set , we say that is rainbow connected if for every vertex pair , there exists a path from t…

math.CO2021★ 4 cited

On the hat guessing number of a planar graph class

Peter Bradshaw

The hat guessing number is a graph invariant based on a hat guessing game introduced by Winkler. Using a new vertex decomposition argument involving an edge density theorem of Erdő…

math.CO2021★ 2 cited

Robust Connectivity of Graphs on Surfaces

Peter Bradshaw, Tomáš Masařík, Jana Novotná +1

Let denote the set of leaves in a tree . One natural problem is to look for a spanning tree of a given graph such that is as large as possible. This proble…

math.CO2021

From one to many rainbow Hamiltonian cycles

Peter Bradshaw, Kevin Halasz, Ladislav Stacho

Given a graph and a family of subgraphs of , a transversal of is a pair such that and $ϕ: T \righ…