The Grothendieck ring of varieties is not a domain
The Grothendieck ring of varieties is not a domain
复制标题
格洛腾迪克变种环不是一个域
DOI:
--
复制
发表时间:
2002
期刊:
影响因子:
--
通讯作者:
B. Poonen
中科院分区:
文献类型:
--
作者:
B. Poonen
Let k be a field. Let K_0(V_k) denote the quotient of the free abelian group generated by the geometrically reduced varieties over k, modulo the relations of the form [X]=[X-Y]+[Y] whenever Y is a closed subvariety of X. Product of varieties makes K_0(V_k) into a ring. We prove that if the characteristic of k is zero, then K_0(V_k) is not a domain.