m at h . G R ] 1 6 M ay 1 99 5 The second bounded cohomology of a group with infinitely many ends ∗
نویسنده
چکیده
We study the second bounded cohomology of an amalgamated free product of groups, and an HNN extension of a group. As an application, we have a group with infinitely many ends has infinite dimensional second bounded cohomology.
منابع مشابه
The Second Bounded Cohomology of an Amalgamated Free Product of Groups
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.
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