Abstract: We describe discrete isomorphism invariants for tensors which generalize and unify the chromatic polynomial of a graph and of a matroid, characteristic numbers of quadrics in Schubert calculus, Betti numbers of complements of hyperplane arrangements, Euler characteristic of complements of determinantal hypersurfaces, and maximum likelihood degree for general linear concentration models in algebraic statistics. Based on joint work with Mateusz Michalek.
