Highly Influenced

# The surgery obstruction groups of the infinite dihedral group

@inproceedings{Connolly2004TheSO, title={The surgery obstruction groups of the infinite dihedral group}, author={Francis X Connolly and James F Davis}, year={2004} }

- Published 2004

This paper computes the quadratic Witt groups (the Wall L–groups) of the polynomial ring Z[t] and the integral group ring of the infinite dihedral group, with various involutions. We show that some of these groups are infinite direct sums of cyclic groups of order 2 and 4. The techniques used are quadratic linking forms over Z[t] and Arf invariants. AMS Classification numbers Primary: 57R67 Secondary: 19J25, 19G24