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math.AT2018
Non-integrality of some Steinberg modules
Jeremy Miller, Peter Patzt, Jennifer C. H. Wilson +1
We prove that the Steinberg module of the special linear group of a quadratic imaginary number ring which is not Euclidean is not generated by integral apartments. Assuming the gen…
math.AT2018
Stability in the high-dimensional cohomology of congruence subgroups
Jeremy Miller, Rohit Nagpal, Peter Patzt
We prove a representation stability result for the codimension-one cohomology of the level three congruence subgroup of . This is a special case of a que…