Inverse K-Chevalley formulas for semi-infinite flag manifolds, I: minuscule weights in ADE type
Inverse K-Chevalley formulas for semi-infinite flag manifolds, I: minuscule weights in ADE type
复制标题
半无限旗形流形的反 K-Chevalley 公式,I:ADE 类型中的微小权重
DOI:
10.1017/fms.2021.45
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Daisuke Sagaki
中科院分区:
文献类型:
--
作者:
Takafumi Kouno;Satoshi Naito;Daniel Orr;Daisuke Sagaki
We prove an explicit inverse Chevalley formula in the equivariant K-theory of semi-infinite flag manifolds of simply laced type. By an ‘inverse Chevalley formula’ we mean a formula for the product of an equivariant scalar with a Schubert class, expressed as a -linear combination of Schubert classes twisted by equivariant line bundles. Our formula applies to arbitrary Schubert classes in semi-infinite flag manifolds of simply laced type and equivariant scalars , where is an arbitrary minuscule weight. By a result of Stembridge, our formula completely determines the inverse Chevalley formula for arbitrary weights in simply laced type except for type . The combinatorics of our formula is governed by the quantum Bruhat graph, and the proof is based on a limit from the double affine Hecke algebra. Thus our formula also provides an explicit determination of all nonsymmetric q-Toda operators for minuscule weights in ADE type.
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影响因子:
1.7
作者:
J. Stembridge
通讯作者:
J. Stembridge
影响因子:
1.7
作者:
S. Naito;D. Orr;D. Sagaki
通讯作者:
D. Sagaki
DOI:
10.1016/j.jcta.2011.11.013
发表时间:
2011
期刊:
J. Comb. Theory A
影响因子:
--
作者:
Cristian Lenart
通讯作者:
Cristian Lenart
影响因子:
9.3
作者:
Noelker C;Morel L;Osterloh A;Alvarez-Fischer D;Lescot T;Breloer M;Gold M;Oertel WH;Henze C;Michel PP;Dodel RC;Lu L;Hirsch EC;Hunot S;Hartmann A
通讯作者:
Hartmann A
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