Smooth and Algebraic Invariants of a Group Action: Local and Global Constructions.

Evelyne Hubert Irina A. Kogan Smooth and Algebraic Invariants of a Group Action: Local and Global Constructions. 455-493 2007 7 Foundations of Computational Mathematics 4 http://dx.doi.org/10.1007/s10208-006-0219-0 db/journals/focm/focm7.html#HubertK07