Triangular monomial derivations on k[X1,X2,X3,X4] have kernel generated by at most four elements

[摘要] It is shown that any triangular derivation on k[X-1,X-2,X-3,X-4] sending X-1 to a monomial has kernel generated by at most four elements, hence is finitely generated. An explicit formula for the generators is given. (C) 2000 Elsevier Science B.V. All rights reserved.

[发布日期] 2000-10-25