  In 2002, Feigin and Veselov defined the space of m-quasiinvariants for any
Coxeter group, building on earlier work of Chalykh and Veselov. While many
properties of those spaces were proven from this definition, an explicit
computation of a basis was only done in certain cases. In particular, Feigin
and Veselov computed bases for the m-quasiinvariants of dihedral groups,
including S_3, and Felder and Veselov computed the non-symmetric
m-quasiinvariants of lowest degree for general S_n. In this paper, we provide a
new characterization of the m-quasiinvariants of S_n, and use this to provide a
basis for the isotypic component indexed by the partition [n-1,1]. This builds
on a previous paper in which we computed a basis for S_3 via combinatorial
methods.
