Weak disjointness of transformation groups

Weak disjointness of transformation groups
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DOI:
10.1090/s0002-9939-1972-0298642-2
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发表时间:
1972
期刊:
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影响因子:
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通讯作者:
Reuven Peleg
Reuven Peleg
中科院分区:
其他
文献类型:
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作者:
Reuven Peleg

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。如果两个变换群 (t.g.) 的乘积是遍历的,则它们被称为弱不相交。我们用某一类 t.g 来描述这种关系。然后证明对于某个 t.g. 族中的 (X.T) 和 (Y, D),{X, T) 和 (Y, T) 是不相交的,当且仅当它们没有非平凡的公因子。最后,我们概括了[2]和[4]的一些不相交关系。
. Two transformation groups (t.g.) are called weakly disjoint if their product is ergodic. We characterize this relation for a certain class of t.g. and then prove that for (X. T) and (Y, D in a certain family of t.g. {X, T) and (Y, T) are disjoint iff they have no nontrivial common factor. Finally, we generalize some disjointness relations of [2] and [4].