Title: A torsion projective class for a group algebra
Author: Ian J. Leary
AMS numbers: 19A31, also 16S34 and 55N15.
Author's address: Faculty of Mathematical Sciences,
University of Southampton,
Southampton,
SO17 1BJ.
Email: ijl@maths.soton.ac.uk
Abstract: For a certain cyclic-by-finite group, we construct an
element of order two in the algebraic $K_0$ of the rational group
ring, whose image in $K_0$ of the complex group ring is zero.
Non-triviality of the element is established using topological
methods.