Extensions of symmetric cat-groups

Bourn, Dominique;Vitale, Enrico
(2002) Homology, Homotopy and Applications — Vol. 4, p. 103-162 (2002)

Files

103-162.pdf
  • Open Access
  • Adobe PDF
  • 561.77 KB
Download

Details

Authors
Abstract
This paper is an attempt to study extensions of symmetric categorical groups from a structural point of view. Using in a systematic way bilimits in the 2-category of symmetric categorical groups, we develop a theory which closely follows the classical theory of abelian group extensions. The basic results are established for any proper class of extensions, and a cohomological classification is obtained for those extensions whose epi part has a categorical section.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Bourn, D., & Vitale, E. (2002). Extensions of symmetric cat-groups. Homology, Homotopy and Applications, 4, 103-162. https://doi.org/10.4310/HHA.2002.v4.n1.a8 (Original work published 2002)