Labeled binary planar trees and quasi-Lie algebras

Labeled binary planar trees and quasi-Lie algebras
复制标题

带标签的二元平面树和拟李代数

DOI:
--
复制
发表时间:
2005
期刊:
影响因子:
--
通讯作者:
J. Levine
J. Levine
中科院分区:
--
文献类型:
--
作者:
J. Levine

文献摘要

被引文献

相似文献

我们研究了一组二叉平面树之间的自然映射η,这些二叉平面树的叶子由一个自由阿贝尔群H和一个由H上的自由李代数导出的群D(H)的元素标记。这两组树出现在几种不同的拓扑环境中。已知η在Q上是同构的,但在z上不是。我们确定了它的核,并反驳了它是内射的猜想。
We study the natural map η between a group of binary planar trees whose leaves are labeled by elements of a free abelian group H and a certain group D(H) derived from the free Lie algebra over H. Both of these groups arise in several different topological contexts. η is known to be an isomorphism over Q, but not over Z. We determine its cokernel and attack the conjecture that it is injective.