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Steffen Kionke's user avatar
Steffen Kionke's user avatar
Steffen Kionke's user avatar
Steffen Kionke
  • Member for 9 years, 9 months
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9 Answers

Score Activity Newest
18 votes
Accepted

Second Betti number of lattices in $\mathrm{SL}_3(\mathbf{R})$

8 votes
Accepted

Zero divisors in complex group algebras of residually finite groups

5 votes
Accepted

Reference proving $\beta^{(2)}_1(G) \le d(G)-1$

4 votes

Congruence subgroups in arithmetic lattices of $\mathrm{SO}(n,1)$

3 votes
Accepted

An analytical zero divisor

3 votes
Accepted

Index of congruence modular subgroup of level (1,d)

2 votes

3-dimensional vectors satisfying certain equalities

2 votes
Accepted

Difference between $G$-rank and the maximal $G$-power quotient

1 vote
Accepted

Sheaves on solenoids