A Thom-Porteous formula for connective K -theory using algebraic cobordism
A Thom-Porteous formula for connective K -theory using algebraic cobordism
复制标题
使用代数共边的联结K理论的Thom-Porteous公式
DOI:
10.1017/is014005031jkt266
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发表时间:
2013
影响因子:
--
通讯作者:
Thomas Hudson
中科院分区:
文献类型:
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作者:
Thomas Hudson
We prove a formula for the push-forward class of Bott-Samelson resolutions in the algebraic cobordism ring of the flag bundle. We specialise our formula to connective K-theory providing a geometric interpretation to the double β-polynomials of Fomin and Kirillov by computing the fundamental classes of Schubert varieties. As a corollary we obtain a Thom-Porteous formula generalising those of the Chow ring and of the Grothendieck ring of vector bundles.