<var>NK</var><sub>0</sub> and <var>NK</var><sub>1</sub> of the groups <var>C</var><sub>4</sub> and <var>D</var><sub>4</sub> <br>Addendum to “Lower algebraic <var>K</var>-theory of hyperbolic 3-simplex reflection groups” by J.-F. Lafont and I. J. Ortiz
Charles A. Weibel
Rutgers University, Piscataway, United States
In this addendum to [LO] we explicitly compute the Bass Nil-groups NKi(ℤ[C4) for i = 0, 1 and NK0(ℤ[D4). We also show that NK1(ℤ[D4) is not trivial. Here C4 denotes the cyclic group of order 4 and D4 is the dihedral group of order 8.