Susan Jowett

collaborators

2 papers

math.CO2020

Recognising Graphic and Matroidal Connectivity Functions

Nathan Bowler, Susan Jowett

A {\em connectivity function} on a set $E$ is a function $λ : 2^{E} \to R$ such that $λ (\emptyset) = 0$ , that $λ (X) = λ (E - X)$ for all $X \subseteq E$ , and that $λ(X\cap Y)+λ(…

math.CO2016

Connectivity Functions and Polymatroids

Susan Jowett, Songbao Mo, Geoff Whittle

A {\em connectivity function on} a set $E$ is a function $λ : 2^{E} \to R$ such that $λ (\emptyset) = 0$ , that $λ (X) = λ (E - X)$ for all $X \subseteq E$ and that $λ(X\cap Y)+λ(X…