1. Bialynicki-Birula, A.: Some theorems on actions of algebraic groups. Ann. Math. 98, 480–497 (1973)
2. Bialynicki-Birula, A.: Some properties of the decompositions of algebraic varieties determined by actions of a torus. Bull. Acad. Pol. Sci. Ser. Sci. Math. Astron. Phys. 24, 667–674 (1976)
3. Buryak, A.: The classes of the quasihomogeneous Hilbert schemes of points on the plane. Mosc. Math. J. 12(1), 1–17 (2012)
4. Buryak, A., Feigin, B.L.: Homogeneous components in the moduli space of sheaves and Virasoro characters. J. Geom. Phys. 62(7), 1652–1664 (2012)
5. Costello, K., Grojnowski, I.: Hilbert schemes, Hecke algebras and the Calogero-Sutherland system.
math.AG/0310189