Quantized nilradicals of parabolic subalgebras of and algebras of coinvariants
Quantized nilradicals of parabolic subalgebras of and algebras of coinvariants
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抛物线子代数和共变体代数的量化零根
DOI:
10.1080/00927872.2022.2080216
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发表时间:
2022
影响因子:
0.7
通讯作者:
Johnson, Garrett
中科院分区:
文献类型:
--
作者:
Jaramillo, Andrew;Johnson, Garrett
LetPJbe the standard parabolic subgroup ofSLnassociated to a subsetJof simple roots, and letbe the standard Levi decomposition. We letanddenote the quantized algebras of regular functions onPJandLJ, respectively. Following work of the first author, we study the quantum analogueof an induced coaction and the corresponding subalgebraof coinvariants. It was previously shown that the smash product algebrais isomorphic toIn view of this,– while it is not a Hopf algebra – can be viewed as a quantum analogue of the coordinate ringIn this article we prove that whenis nonzero and not a root of unity,is isomorphic to a quantum Schubert cell algebraassociated to a certain parabolic elementwin the Weyl group ofIn this setting, the quantum Schubert cell algebrais aq-deformation of the universal enveloping algebra of the nilradical of a parabolic subalgebra ofWe also compute explicit commutation relations among the Lusztig root vectors for these particular quantized nilradicals and we give explicit algebra isomorphisms fromto
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DOI:
--
发表时间:
2013
期刊:
影响因子:
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作者:
Andrew Jaramillo
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Andrew Jaramillo
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2010
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发表时间:
2009
期刊:
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DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
Andrew Jaramillo