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20222026
most citedOn the codimension-two cohomology of

6 citations · 11 across the 8 of their papers we have counts for

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math.AT2026

Double Steinberg coinvariants for special linear groups

Tatiana Abdelnaim, David Chan, Alexander Kupers +2

For a field we study the coinvariants for the -action on the double Steinberg module and show they have a rich algebraic structure: for $n =…

math.AT2026

Scissors automorphism groups II: Solomon-Tits theorems

Alexander Kupers, Ezekiel Lemann, Cary Malkiewich +2

The Solomon-Tits theorem says that the poset of proper non-trivial subspaces of a finite-dimensional vector space has realisation equivalent to a wedge of spheres. In this paper we…