论文标题
k降低的群体和米尔诺不变
k-reduced groups and Milnor invariants
论文作者
论文摘要
我们以代数和图表的方式表征了Milnor String链接不变性，该序列由序列索引，其中任何索引出现最多$ K $ times，对于任何固定的$ k \ ge 1 $。代数表征是根据对所谓的$ k $降低免费组的类似Artin式动作进行的；图表表征使用了焊接结理论的范围。还解决了链接案例。
We characterize, in an algebraic and in a diagrammatic way, Milnor string link invariants indexed by sequences where any index appears at most $k$ times, for any fixed $k\ge 1$. The algebraic characterization is given in terms of an Artin-like action on the so-called $k$-reduced free groups; the diagrammatic characterization uses the langage of welded knot theory. The link case is also addressed.
