C = makeKClass(X,FM)
A flag matroid of whose constituent matroids have ranks $r_1, \ldots, r_k$ and ground set size $n$ defines a KClass on the (partial) flag variety $Fl(r_1,\ldots, r_k;n)$. When the flag matroid arises from a matrix representing a point on the (partial) flag variety, this equivariant Kclass coincides with that of the structure sheaf of its torus orbit closure. See [CDMS18] or [DES20].





