保体积同构群上的群上循环
Group cocycles on the volume-preserving diffeomorphism group
摘要:
本文在保体积同构群上构造了两类群上循环。我们证明了,对于保体积的球面同态群,其中一个上圈给出了平坦球面丛的欧拉类。
英文摘要:
We construct two kinds of group cocycles on the volume-preserving diffeomorphism group. We show that, for the volume-preserving diffeomorphism group of the sphere, one of the cocycles gives the Euler class of flat sphere bundles.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。