Combinatorial Aspects of the K-Theory of Grassmannians
Combinatorial Aspects of the K-Theory of Grassmannians
复制标题
格拉斯曼 K 理论的组合方面
DOI:
--
复制
发表时间:
2000
期刊:
影响因子:
--
通讯作者:
Cristian Lenart
中科院分区:
文献类型:
--
作者:
Cristian Lenart
Abstract. In this paper we study Grothendieck polynomials indexed by Grassmannian permutations, which are representatives for the classes corresponding to the structure sheaves of Schubert varieties in the K-theory of Grassmannians. These Grothendieck polynomials are nonhomogeneous symmetric polynomials whose lowest homogeneous component is a Schur polynomial. Our treatment, which is closely related to the theory of Schur functions, gives new information about these polynomials. Our main results are concerned with the transition matrices between Grothendieck polynomials indexed by Grassmannian permutations and Schur polynomials on the one hand and a Pieri formula for these Grothendieck polynomials on the other.