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math.NT2013
Exponential growth of homological torsion for towers of congruence subgroups of Bianchi groups
Jonathan Pfaff
In this paper we prove that for suitable sequences of congruence subgroups of Bianchi groups, including the standard exhaustive sequences of a congruence subgroup, and even symmetr…
math.NT2013★ 1 cited
On the growth of torsion in the cohomology of arithmetic groups
Werner Mueller, Jonathan Pfaff
In this paper we consider certain families of arithmetic subgroups of SO^0(p,q) and SL_3(R), respectively. We study the cohomology of such arithmetic groups with coefficients in ar…