Issue no. 1 Table of Contents

Géométrie de l'espace tangent sur l'hyperboloïde quantique
p. 2-50
More on orthogonality in locally presentable categories
p. 51-80

Issue no. 2 Table of Contents

Equivariant Gottlieb groups
p. 83-100
Higher fundamental functors for simplicial sets
p. 101-136
Rational nilpotent groups as subgroups of self-homotopy equivalences
p. 137-153

Issue no. 3 Table of Contents

Almost abelian categories
p. 163-225
Correction to “Topological balls”
p. 227-228
Esquisses inductives et presque inductives
p. 229-240

Issue no. 4 Table of Contents

The cartesian closed hull of the category of approach spaces
p. 242-260
Cochain operations and higher cohomology operations
p. 261-284
Symmetric monoidal closed structures in 𝑃𝑅𝐴𝑃
p. 285-316