Contents Online

# Homology, Homotopy and Applications

## Volume 9 (2007)

### Number 2

### Contents

On higher nil groups of group rings

pp. 95-100

From loop groups to 2-groups

pp. 101-135

A few localisation theorems

pp. 137-161

Erratum to “Category of $A_{\infty}$-categories”

pp. 163-164

A chain coalgebra model for the James map

pp. 209-231

Heller triangulated categories

pp. 233-320

A statistical approach to persistent homology

pp. 337-362

Model structure on operads in orthogonal spectra

pp. 397-412

Hopf-Hochschild (co)homology of module algebras

pp. 451-472