Newton polytopes of invariants of additive group actions
Newton polytopes of invariants of additive group actions
复制标题
加性群作用不变量的牛顿多胞体
DOI:
10.1016/s0022-4049(99)00151-6
复制
发表时间:
2001
影响因子:
0.8
通讯作者:
L. Makar
中科院分区:
文献类型:
--
作者:
H. Derksen;O. Hadas;L. Makar
It is shown that the vertices of Newton polytopes of invariants of an algebraic group action of the additive group of a field k of arbitrary characteristic on affine n-space over k lie on the coordinate hyperplanes. Furthermore, let E be the set of all edges of these Newton polytopes whose vertices lie in different coordinate hyperplanes. It is shown that one of these polytopes has edges with all directions represented in E.