Surgery obstruction groups

Revision as of 10:50, 8 June 2010

1 Introduction

The surgery obstruction groups ${{Authors|Hambleton}} == Introduction == <wikitex>; The surgery obstruction groups $$L_n(R\pi, w)$$ of C.T.C. Wall \cite{wall-book}, \cite{wall-VI} depend on a coefficient ring $R$, a discrete group $\pi$ and an orientation character $w\colon \pi \to \{\pm 1\}$. In general the surgery obstruction groups are abelian groups. For finite groups $\pi$ the $L$-groups are finitely-generated and the only torsion is $-primary. </wikitex> [[Media:Filename.pdf|A Guide to the Calculation of Surgery Obstruction Groups, pp. 1-3]] == References == {{#RefList:}} [[Category:Theory]] {{Stub}}L_n(R\pi, w)$ of C.T.C. Wall [wall-book], [wall-VI] depend on a coefficient ring $R$, a discrete group $\pi$ and an orientation character $w\colon \pi \to \{\pm 1\}$. In general the surgery obstruction groups are abelian groups. For finite groups $\pi$ the $L$-groups are finitely-generated and the only torsion is $2$-primary.

A Guide to the Calculation of Surgery Obstruction Groups, Hambleton & Taylor (2000), pp. 1-3

2 References

• [wall-VI] Template:Wall-VI
• [wall-book] Template:Wall-book