On the cohomology of Torelli groups

Autor: Kupers, Alexander, Randal-Williams, Oscar
Rok vydání: 2019
Předmět:
Zdroj: Forum of Mathematics, Pi 8 (2020) e7
Druh dokumentu: Working Paper
DOI: 10.1017/fmp.2020.5
Popis: 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 $2n \geq 6$. 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.
Comment: 57 pages; v2 improved exposition and minor mathematical corrections; v3; v4 final version, to appear in Forum of Mathematics, Pi
Databáze: arXiv