We explicitly construct a finite set of separating invariants for the basic G(a)-actions. These are the finite dimensional indecomposable rational linear representations of the additive group G(a) of a field of characteristic zero, and their invariants are the kernel of the Weitzenbock derivation D-n = x(0) partial derivative/partial derivative x1 + ... + x(n-1) partial derivative/partial derivative x(n).
机构:
MTA Alfred Renyi Inst Math, Realtanoda Utca 13-15, H-1053 Budapest, HungaryMTA Alfred Renyi Inst Math, Realtanoda Utca 13-15, H-1053 Budapest, Hungary