activity
20092026
collaborators

5 papers

math.CO2026

Asymptotic enumeration of constrained bipartite, directed and oriented graphs by degree sequence

Catherine Greenhill, Mahdieh Hasheminezhad, Isaiah Iliffe +1

In the sufficiently sparse case, we find the probability that a uniformly random bipartite graph with given degree sequence contains no edge from a specified set of edges. This ena…

cs.DM2025

The random -SAT Gibbs uniqueness threshold revisited

Arnab Chatterjee, Amin Coja-Oghlan, Catherine Greenhill +4

We prove that for any for clause/variable ratios up to the Gibbs uniqueness threshold of the corresponding Galton-Watson tree, the number of satisfying assignments of rand…

math.CO2024

Enumeration of dihypergraphs with specified degrees and edge types

Catherine Greenhill, Tamás Makai

A directed hypergraph (dihypergraph) consists of a set of vertices and a set of hyperarcs, where each hyperarc is partitioned into a head and a tail. Directed hypergraphs are usefu…

math.CO2013

Asymptotic enumeration of sparse multigraphs with given degrees

Catherine Greenhill, Brendan D McKay

Let J and J* be subsets of Z+ such that 0,1\in J and 0\in J*. For infinitely many n, let k=(k_1,..., k_n) be a vector of nonnegative integers whose sum M is even. We find an asympt…

math.CO2009

Asymptotic enumeration of correlation-immune boolean functions

E. Rodney Canfield, Zhicheng Gao, Catherine Greenhill +2

A boolean function of boolean variables is {correlation-immune} of order if the function value is uncorrelated with the values of any of the arguments. Such functions a…