Enumerating Large Orbits and Direct Condensation

Enumerating Large Orbits and Direct Condensation
复制标题

枚举大轨道和直接凝聚

DOI:
10.1080/10586458.2001.10504443
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发表时间:
2001
影响因子:
0.5
通讯作者:
Max Neunhöffer
Max Neunhöffer
中科院分区:
数学3区
文献类型:
--
作者:
Frank Lübeck;Max Neunhöffer

文献摘要

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我们描述了一个新的算法直接凝聚,这是一个工具,在计算表示理论。这一点的关键是枚举非常大的轨道的一组作用于一些集。我们提出了一个标准的轨道枚举算法的变化,减少了所需的存储量,并表现良好的并行化。对于作用于有限向量空间的矩阵的特殊情况,描述了一种有效的实现。这使我们能够使用凝聚方法处理比以前处理的大得多的置换表示。
We describe a new algorithm for direct condensation, which is a tool in computational representation theory. The crucial point for this is the enumeration of very large orbits for a group acting on some set. We present a variation of the standard orbit enumeration algorithm that reduces the amount of storage needed and behaves well under parallelization. For the special case of matrices acting on a finite vector space an efficient implementation is described. This allows us to use condensation methods for considerably larger permutation representations than could be handled before.