arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0709.2173math.GTmath.AT
收藏

三维流形的映射类群的稳定性

Stabilization for mapping class groups of 3-manifolds

Allen Hatcher, Nathalie Wahl

摘要:

证明了当任意3-流形都是紧的可定向流形时,任意3-流形的映射类群在连通和及边界连通和下的同调是稳定的.稳定化也适用于沿着球体和圆盘扭转的商群,并包括自由群的对称自同构、某些自由积的自同构和非对称体映射类群的同调稳定性。我们的方法也适用于其他方面的情况下,稳定穿刺流形。

英文摘要:

We prove that the homology of the mapping class group of any 3-manifold stabilizes under connected sum and boundary connected sum with an arbitrary 3-manifold when both manifolds are compact and orientable. The stabilization also holds for the quotient group by twists along spheres and disks, and includes as particular cases homological stability for symmetric automorphisms of free groups, automorphisms of certain free products, and handlebody mapping class groups. Our methods also apply to manifolds of other dimensions in the case of stabilization by punctures.

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。

↑