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arXiv 1009.0487math.GR
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牢不可破的循环

Unbreakable Loops

Martin Beaudry, Louis Marchand

摘要:

我们说一个循环是牢不可破的,当它没有非平凡的子循环。当素数阶的循环群是唯一的牢不可破有限群时,我们证明了非结合牢不可破环对每个阶n >= 5都存在。我们描述了两个家庭的交换不可破环的奇数阶,n >= 7,其中一个循环的乘法组是同构的交替群An和另一个乘法组是同构的对称群Sn。我们还证明了对于每个偶数n >= 6,存在n阶不可破环,其乘法群同构于Sn。

英文摘要:

We say that a loop is unbreakable when it does not have nontrivial subloops. While the cyclic groups of prime order are the only unbreakable finite groups, we show that nonassociative unbreakable loops exist for every order n >= 5. We describe two families of commutative unbreakable loops of odd order, n >= 7, one where the loop's multiplication group is isomorphic to the alternating group An and another where the multiplication group is isomorphic to the symmetric group Sn. We also prove for each even n >= 6 that there exist unbreakable loops of order n whose multiplication group is isomorphic to Sn.

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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