Characterizations of PG(n - 1, q)\PG(k - 1, q) by Numerical and Polynomial Invariants

We show that the simple matroid PG(n - 1, q)\PG(k - 1, q), for n > 4 and 1 ≤ k ≤ n - 2, is characterized by a variety of numerical and polynomial invariants. In particular, any matroid that has the same Tutte polynomial as PG(n - 1, q)\PG(k - 1, q) is isomorphic to PG(n - 1, q)\PG(k - 1, q).