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ON THE COHOMOLOGY OF TORELLI GROUPS
Forum of Mathematics, Pi Pub Date : 2020-04-13 , DOI: 10.1017/fmp.2020.5 ALEXANDER KUPERS , OSCAR RANDAL-WILLIAMS
Forum of Mathematics, Pi Pub Date : 2020-04-13 , DOI: 10.1017/fmp.2020.5 ALEXANDER KUPERS , OSCAR RANDAL-WILLIAMS
We completely describe the algebraic part of the rational cohomology of the Torelli groups of the manifolds$\#^{g}S^{n}\times S^{n}$ relative to a disc in a stable range, for$2n\geqslant 6$ . Our calculation is also valid for$2n=2$ assuming that the rational cohomology groups of these Torelli groups are finite-dimensional in a stable range.
中文翻译:
关于 TORELLI 群的上同调
我们完整地描述了流形的 Torelli 群的有理上同调的代数部分$\#^{g}S^{n}\次 S^{n}$ 相对于稳定范围内的盘,对于$2n\geqslant 6$ . 我们的计算也适用于$2n=2$ 假设这些 Torelli 群的有理上同调群在稳定范围内是有限维的。
更新日期:2020-04-13
中文翻译:
关于 TORELLI 群的上同调
我们完整地描述了流形的 Torelli 群的有理上同调的代数部分