105 citations · 705 across the 54 of their papers we have counts for
5 papers · 1 filter
Stability in the homology of unipotent groups
Andrew Putman, Steven V Sam, Andrew Snowden
Let be a (not necessarily commutative) ring whose additive group is finitely generated and let be the group of upper-triangular unipotent matrices over…
On finite generation of the Johnson filtrations
Thomas Church, Mikhail Ershov, Andrew Putman
We prove that every term of the lower central series and Johnson filtrations of the Torelli subgroups of the mapping class group and the automorphism group of a free group is finit…
Simple closed curves, finite covers of surfaces, and power subgroups of Out(F_n)
Justin Malestein, Andrew Putman
We construct examples of finite covers of punctured surfaces where the first rational homology is not spanned by lifts of simple closed curves. More generally, for any set $\mathca…
Homological vanishing for the Steinberg representation
Avner Ash, Andrew Putman, Steven V Sam
For a field , we prove that the th homology of the groups , , , , and with coefficients in their Steinberg represen…
Generating the Johnson filtration II: finite generation
Thomas Church, Andrew Putman
We prove that every term of the lower central series and Johnson filtrations of the Torelli subgroups of the mapping class group and the automorphism group of a free group are fini…