Bases for Primitive Permutation Groups and a Conjecture of Babai

Bases for Primitive Permutation Groups and a Conjecture of Babai
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原置换群的基与巴拜猜想

DOI:
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发表时间:
1998
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影响因子:
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通讯作者:
A. Shalev
A. Shalev
中科院分区:
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文献类型:
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作者:
D. Gluck;Á. Seress;A. Shalev

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摘要 置换群 G 的基是来自置换域的点序列 B,使得只有 G 的恒等式才能逐点固定 B。我们证明,没有次数大于 d 的交替组合因子且没有等级大于 d 的经典组合因子的原始排列群的大小基数以 d 函数为界。这证实了巴白的一个猜想。
Abstract A base of a permutation group G is a sequence B of points from the permutation domain such that only the identity of G fixes B pointwise. We show that primitive permutation groups with no alternating composition factors of degree greater than d and no classical composition factors of rank greater than d have a base of size bounded above by a function of d . This confirms a conjecture of Babai.