2 papers
math.CO2024
Monadic transductions and definable classes of matroids
Susan Jowett, Dillon Mayhew, Songbao Mo +1
A transduction provides us with a way of using the monadic second-order language of a structure to make statements about a derived structure. Any transduction induces a relation on…
math.CO2016
Connectivity Functions and Polymatroids
Susan Jowett, Songbao Mo, Geoff Whittle
A {\em connectivity function on} a set is a function such that , that for all and that $λ(X\cap Y)+λ(X…