The Kostant partition function for simple Lie algebras

The Kostant partition function for simple Lie algebras
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简单李代数的 Kostant 配分函数

DOI:
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发表时间:
1984
期刊:
影响因子:
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通讯作者:
A. Bincer
A. Bincer
中科院分区:
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文献类型:
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作者:
J. R. Schmidt;A. Bincer

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本文给出了一个简单的计算简单李代数的Kostant配分函数的算法。该算法也可以用来表示一个李代数的配分函数为另一个的配分函数,后者代数不一定是前者的子代数。简单根的和在算法中起着特殊的作用。对于各种特殊情况,给出了配分函数的显式封闭形式表达式。
A simple algorithm is developed for evaluating the Kostant partition function for any simple Lie algebra. The algorithm may also be used to express the partition function for one Lie algebra in terms of the partition function for another, with the latter algebra not necessarily a subalgebra of the former. A special role in the algorithm is played by the sum of the simple roots. Explicit, closed‐form expressions are given for the partition function for a variety of special cases.