Algebraic and enumerative combinatorics seminar-Isabella Fosberry

Title: Minimising the Martin invariant

Abstract: The Martin invariant of an even degree regular graph is an integer, defined by a recurrence at a vertex. In this talk, we define
this invariant and review some of its properties, and then focus on the following question: which graphs minimise the Martin invariant?

There will be a pre-seminar presenting relevant background at the beginning graduate level starting at 1:30pm.