講演会

過去の記録 ~02/05次回の予定今後の予定 02/06~


2018年06月12日(火)

15:00-16:00   数理科学研究科棟(駒場) 056号室
Alexander Kupers 氏 (Harvard University)
Cellular E_2-algebras and the unstable homology of mapping class groups

[ 講演概要 ]
We discuss joint work with Soren Galatius and Oscar Randal-Williams on the application of higher-algebraic techniques to classical questions about the homology of mapping class groups. This uses a new "multiplicative" approach to homological stability -- in contrast to the "additive" one due to Quillen -- which has the advantage of providing information outside of the stable range.