Double groupoids and crossed modules

Ronald Brown; Christopher B. Spencer

Cahiers de Topologie et Géométrie Différentielle Catégoriques (1976)

  • Volume: 17, Issue: 4, page 343-362
  • ISSN: 1245-530X

How to cite


Brown, Ronald, and Spencer, Christopher B.. "Double groupoids and crossed modules." Cahiers de Topologie et Géométrie Différentielle Catégoriques 17.4 (1976): 343-362. <>.

author = {Brown, Ronald, Spencer, Christopher B.},
journal = {Cahiers de Topologie et Géométrie Différentielle Catégoriques},
language = {eng},
number = {4},
pages = {343-362},
publisher = {Dunod éditeur, publié avec le concours du CNRS},
title = {Double groupoids and crossed modules},
url = {},
volume = {17},
year = {1976},

AU - Brown, Ronald
AU - Spencer, Christopher B.
TI - Double groupoids and crossed modules
JO - Cahiers de Topologie et Géométrie Différentielle Catégoriques
PY - 1976
PB - Dunod éditeur, publié avec le concours du CNRS
VL - 17
IS - 4
SP - 343
EP - 362
LA - eng
UR -
ER -


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  14. 14 G.M. Kelly and R. Street, Review of the elements of 2-categories, Lecture Notes in Math.420 (1974), 75 - 103. Zbl0334.18016MR357542
  15. 15 R. Brown and C.B. Spencer, G-groupoids, crossed modules and the fundamental groupoid of a topological group, Proc. Kon. Ned. Akad. Wet.A79 (1976), 296. Zbl0333.55011MR419643

Citations in EuDML Documents

  1. Christopher B. Spencer, An abstract setting for homotopy pushouts and pullbacks
  2. Ronald Brown, Philip J. Higgins, The equivalence of -groupoids and crossed complexes
  3. Timothy Porter, Crossed modules in C a t and a Brown-Spencer theorem for 2 -categories
  4. C. B. Spencer, Y. L. Wong, Pullback and pushout squares in a special double category with connection
  5. Robert Dawson, Robert Pare, General associativity and general composition for double categories
  6. R. J. M. Dawson, R. Pare, D. A. Pronk, Free extensions of double categories

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