We describe a gap in the paper referred to in the title, which we cannot fix
in full generality at this time. At least we can prove the desired result for
hyperbolic groups; see Corollary 6. There is also a new result in the case that
is regular and all
finite subgroups of
have odd order; see Theorem 4. We also explain what the consequences are for the
paper by Farrell, Lück and Steimle (2018), where Theorem 0.2 in the corrected
article plays a role.
Keywords
splitting relative $K$-theoretic assembly maps, rational
vanishing and Tate cohomology of the relative Nil-term