6 citations · 12 across the 6 of their papers we have counts for
7 papers
Proper triangular Ga-actions on A^4 are translations
Adrien Dubouloz, David Finston, Imad Jaradat
We describe the structure of geometric quotients for proper locally triangulable additve group actions on locally trivial A^3-bundles over a noetherian normal base scheme X defined…
Proper twin-triangular Ga-actions on A^4 are translations
Adrien Dubouloz, David R. Finston
An additive group action on an affine 3 -space over a complex Dedekind domain A is said to be twin-triangular if it is generated by a locally nilpotent derivation of A[y,z,t] of th…
On exotic affine 3-spheres
Adrien Dubouloz, David R. Finston
Every bundle over the complex affine plane punctured at the origin, is trivial in the differentiable category but there are infinitely many distinct isomorphy clas…
Unipotent group actions on affine varieties
Harm Derksen, Arno van den Essen, David R. Finston +1
Algebraic actions of unipotent groups actions on affine varieties ( an algebraically closed field of characteristic 0) for which the algebraic quotient has sm…
Factorial threefolds with Ga-actions
Adrien Dubouloz, David R. Finston, Parag Deepak Mehta
The affine cancellation problem, which asks whether complex affine varieties with isomorphic cylinders are themselves isomorphic, has a positive solution for two dimensional variet…
The Automorphism Group of Certain Factorial Threefolds and a Cancellation Problem
David Finston, Stefan Maubach
The automorphism groups of certain factorial complex affine threefolds admitting locally trivial actions of the additive group are determined. As a consequence new counterexamples…