2 papers
math.AT2002
Cubical abelian groups with connections are equivalent to chain complexes
R. Brown, Philip J. Higgins
The theorem of the title is deduced from the equivalence between crossed complexes and cubical -groupoids with connections proved by the authors in 1981. In fact we prove the eq…
math.AT2000
Covering groups of non-connected topological groups revisited
R. Brown, O. Mucuk
In general a universal covering of a non connected topological group need not admit a topological group structure such that the covering map is a morphism of topological groups. Th…