Homology, Homotopy and Applications

Volume 14 (2012)

Number 1

The isomorphism conjecture in $L$-theory: graphs of groups

Pages: 1 – 17

DOI: https://dx.doi.org/10.4310/HHA.2012.v14.n1.a1


S.K. Roushon (School of Mathematics, Tata Institute, Mumbai, India)


We study the fibered isomorphism conjecture of Farrell and Jones in $L$-theory for groups acting on trees. In several cases we prove the conjecture. This includes wreath products of abelian groups and free metabelian groups. We also deduce the conjecture in pseudoisotopy theory for these groups. Finally in 2. of Theorem 1.2, we prove the$L$-theory version of Theorem 1.2 in the 2003 paper by Farrell and Linnell.


group action on trees, graph of groups, fibered isomorphism conjecture, $L$-theory, surgery group

2010 Mathematics Subject Classification

Primary 19G24, 19J25. Secondary 55N91.

Published 13 July 2012