Consider the following chains of inclusions, which is realized by sending Z to XZ in every step. R n0,1 ? R n0 ,
A necessary and sufficient condition for triangulability of derivations of k[X, Y, Z], Journal of Pure and Applied Algebra, vol.113, issue.3, pp.297-305, 1996. ,
DOI : 10.1016/0022-4049(95)00156-5
Polynomials f (X, Y, Z) of low LND-degree, 21-34. [D3] D. Daigle, Tame and wild degree functions, pp.53-80, 2011. ,
Constructing (almost) rigid rings and a UFD having infinitely generated Derksen and Makar-Limanov invariant , Canad Algebraic Theory of Locally Nilpotent Derivation, Theory and Alg. Tr. Groups, VII, 2006. ,
AK-invariant of affine domains, Affine Algebraic Geometry, pp.231-255, 2007. ,
On the Russell-Koras contractible threefolds, J. Algebraic Geom, vol.6, issue.2, pp.247-268, 1997. ,
Affine modification and affine hypersurfaces with a very transitive automorphism group, Transform. Groups, vol.4, issue.1, pp.53-95, 1999. ,
Locally nilpotent derivations, a new ring invariant and applications ,
On the group of automorphisms of a surfacex n y=P(z), Israel Journal of Mathematics, vol.326, issue.1, pp.113-123, 2001. ,
DOI : 10.1007/BF02802499
On the hypersurfacex+x 2y+z 2+t 3=0 in ???4 or a ???4-like threefold which is not C3, Israel Journal of Mathematics, vol.309, issue.2, pp.419-429, 1996. ,
DOI : 10.1007/BF02937314