Analyzing the Weyl Construction for Dynamical Cartan Subalgebras
Analyzing the Weyl Construction for Dynamical Cartan Subalgebras
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分析动态嘉当子代数的 Weyl 构造
DOI:
10.1093/imrn/rnab114
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发表时间:
2021
影响因子:
1
通讯作者:
Norton, Rachael
中科院分区:
文献类型:
--
作者:
Duwenig, Anna;Gillaspy, Elizabeth;Norton, Rachael
When the reduced twisted-algebraof a non-principal groupoidadmits a Cartan subalgebra, Renault’s work on Cartan subalgebras implies the existence of another groupoid description of. In an earlier paper, joint with Reznikoff and Wright, we identified situations where such a Cartan subalgebra arises from a subgroupoidof. In this paper, we study the relationship between the original groupoidsand the Weyl groupoid and twist associated to the Cartan pair. We first identify the spectrumof the Cartan subalgebra. We then show that the quotient groupoidacts on, and that the corresponding action groupoid is exactly the Weyl groupoid of the Cartan pair. Lastly, we show that if the quotient mapadmits a continuous section, then the Weyl twist is also given by an explicit continuous-cocycle on.
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DOI:
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发表时间:
2013
期刊:
影响因子:
--
作者:
Marius Ionescu;A. Kumjian
通讯作者:
A. Kumjian
DOI:
--
发表时间:
2019
期刊:
Mathematical Surveys and Monographs
影响因子:
--
作者:
Dana P. Williams
通讯作者:
Dana P. Williams
影响因子:
0.5
作者:
P. Muhly;Dana P. Williams
通讯作者:
P. Muhly;Dana P. Williams
DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
Marius Ionescu;A. Kumjian;J. Renault;A. Sims;Dana P. Williams
通讯作者:
Dana P. Williams
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Geoff Goehle
通讯作者:
Geoff Goehle