53 citations
- Universidad de GranadaES2 papers
- Astronomical ObservatoryRS1 paper
- Astronomical Observatory of CapodimonteIT1 paper
- Beijing Normal UniversityCN1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Consejo Nacional de Investigaciones Científicas y TécnicasAR1 paper
- Ege UniversityTR1 paper
- Florida Institute of TechnologyUS1 paper
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Showing 2004Show all
3 papers · 1 filter
math.CT2004★ 1 cited
Categorical non abelian cohomology, and the Schreier theory of groupoids
V. Blanco, M. Bullejos, E. Faro
By regarding the classical non abelian cohomology of groups from a 2-dimensional categorical viewpoint, we are led to a non abelian cohomology of groupoids which continues to satis…
math.CT2004
Postnikov Invariants of Crossed Complexes
M. Bullejos, E. Faro, M. A. García-Muñoz
We determine the Postnikov Tower and Postnikov Invariants of a Crossed Complex in a purely algebraic way. Using the fact that Crossed Complexes are homotopy types for filtered spac…
math.CT2004
A Full and faithful Nerve for 2-categories
M. Bullejos, E. Faro, V. Blanco
The notion of geometric nerve of a 2-category (Street, \cite{refstreet}) provides a full and faithful functor if regarded as defined on the category of 2-categories and lax 2-funct…