User:Hambleton
From Manifold Atlas
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| − | The surgery obstruction groups | + | 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 |
Latest revision as of 13:50, 7 June 2010
The surgery obstruction groups $$L_n(R\pi, w)$$ 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
