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arXiv 1505.05097math.RA
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双曲形式仿射Demazure代数

The hyperbolic formal affine Demazure algebra

Marc-Antoine Leclerc

摘要:

本文将Hoffnung,Malagón-López,Savage和Zainoulline等人关于形式(仿射)Demazure代数的构造作了两个方向的推广.首先,我们介绍和研究的概念,可扩展的重量格在卡茨-穆迪设置,并表明,所有的定义和性质的正式(仿射)Demazure运营商和代数举行这样的格。其次,我们证明了对于双曲形式群律,形式Demazure代数与Hecke代数是同构的(在扩展系数之后)。

英文摘要:

In the present paper we extend the construction of the formal (affine) Demazure algebra due to Hoffnung, Malagón-López, Savage and Zainoulline in two directions. First, we introduce and study the notion of an extendable weight lattice in the Kac-Moody setting and show that all the definitions and properties of the formal (affine) Demazure operators and algebras hold for such lattices. Second, we show that for the hyperbolic formal group law the formal Demazure algebra is isomorphic (after extending the coefficients) to the Hecke algebra.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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