Diskbusting elements of the free group
Diskbusting elements of the free group
复制标题
Diskbusting 自由组成员
DOI:
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发表时间:
1997
期刊:
影响因子:
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通讯作者:
R. Stong
中科院分区:
文献类型:
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作者:
R. Stong
In 1936 Whitehead presented an algorithm for determining whether an element (or a set of elements) in a free group F is part of a free generating set for F . We will give a more detailed discussion of Whitehead’s algorithm and a new proof that the algorithm works. We will see that in fact Whitehead’s algorithm actually determines whether or not an element (or a set of elements) is diskbusting. If an element ω is not diskbusting, then Whitehead’s algorithm produces the smallest free factor of F in which ω lies, and in that free factor ω is