Chevalley formula for anti-dominant weights in the equivariant K-theory of semi-infinite flag manifolds
Chevalley formula for anti-dominant weights in the equivariant K-theory of semi-infinite flag manifolds
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半无限旗形流形等变K理论中反支配权值的Chevalley公式
DOI:
10.1016/j.aim.2021.107828
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发表时间:
2021
影响因子:
1.7
通讯作者:
D. Sagaki
中科院分区:
文献类型:
--
作者:
S. Naito;D. Orr;D. Sagaki
We prove a Chevalley formula for anti-dominant weights in the torus-equivariantK-group of semi-infinite flag manifolds, which is described explicitly in terms of semi-infinite Lakshmibai-Seshadri paths (or equivalently, quantum Lakshmibai-Seshadri paths); in contrast to the Chevalley formula for dominant weights in our previous paper [17], the formula for anti-dominant weights has a significant finiteness property. Based on geometric results established in [17], our proof is representation-theoretic, and the Chevalley formula for anti-dominant weights follows from a certain identity for the graded characters of Demazure submodules of a level-zero extremal weight module over a quantum affine algebra; in the proof of this identity, we make use of the (combinatorial) standard monomial theory for semi-infinite Lakshmibai-Seshadri paths, and also a string property of Demazure-like subsets of the set of semi-infinite Lakshmibai-Seshadri paths of a fixed shape, which gives an explicit realization of the crystal basis of a level-zero extremal weight module.
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DOI:
10.1016/j.jcta.2022.105670
发表时间:
2022
期刊:
Journal of Combinatorial Theory, Series A
影响因子:
--
作者:
T. Kouno;S. Naito;and D. Sagaki
通讯作者:
and D. Sagaki
影响因子:
1.7
作者:
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通讯作者:
Satoshi Naito and Daisuke Sagaki
影响因子:
3.1
作者:
P. Littelmann
通讯作者:
P. Littelmann
DOI:
10.1016/j.jcta.2007.03.002
发表时间:
2006
期刊:
J. Comb. Theory A
影响因子:
--
作者:
Sergi Elizalde
通讯作者:
Sergi Elizalde
DOI:
--
发表时间:
2015
期刊:
arXiv: Quantum Algebra
影响因子:
--
作者:
Cristian Lenart;S. Naito;Daisuke Sagaki;A. Schilling;M. Shimozono
通讯作者:
M. Shimozono