95 citations · 606 across the 55 of their papers we have counts for
4 papers · 1 filter
Diffeomorphisms of discs and the second Weiss derivative of BTop(-)
Manuel Krannich, Oscar Randal-Williams
We compute the rational homotopy groups in degrees up to approximately d of the group of diffeomorphisms of a closed d-dimensional disc fixing the boundary. Based on…
On the Torelli Lie algebra
Alexander Kupers, Oscar Randal-Williams
We prove two theorems about the Malcev Lie algebra associated to the Torelli group of a surface of genus : stably, it is Koszul and the kernel of the Johnson homomorphism consis…
Mapping class groups of simply connected high-dimensional manifolds need not be arithmetic
Manuel Krannich, Oscar Randal-Williams
It is well known that Sullivan showed that the mapping class group of a simply connected high-dimensional manifold is commensurable with an arithmetic group, but the meaning of "co…
On the order of Dehn twists
Ailsa Keating, Oscar Randal-Williams
This note records the order of a higher dimensional Dehn twist in a range of topologically significant groups.