The second bounded cohomology of an amalgamated free product of groups
The second bounded cohomology of an amalgamated free product of groups
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群的合并自由积的第二有界上同调
DOI：
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发表时间：
1999
期刊：
影响因子：
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通讯作者：
K. Fujiwara
中科院分区：
文献类型：
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作者：
K. Fujiwara
研究了群的混合自由积的第二有界上同调，以及群的HNN扩张。作为应用，我们证明了具有无穷多个端点的群具有无穷维的第二有界上同调。
We study the second bounded cohomology of an amalgamated free product of groups, and an HNN extension of a group. As an application, we show that a group with infinitely many ends has infinite dimensional second bounded cohomology.