Geodesic
Crossed n-folds extensions of groups and cohomology.
Commentarii mathematici Helvetici, Tome 55 (1980), pp. 302-313.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

Mots-clés : cohomology of discrete groups, crossed modules, crossed complexes, crossed n-fold extensions of groups, Eilenberg-Mac Lane's extendibility criterion for abstract kernels 
@article{CMH_1980__55_139827,
     author = {Johannes Huebschmann},
     title = {Crossed n-folds extensions of groups and cohomology.},
     journal = {Commentarii mathematici Helvetici},
     pages = {302--313},
     publisher = {mathdoc},
     volume = {55},
     year = {1980},
     zbl = {0443.18019},
     url = {http://geodesic.mathdoc.fr/item/CMH_1980__55_139827/}
}
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Johannes Huebschmann. Crossed n-folds extensions of groups and cohomology.. Commentarii mathematici Helvetici, Tome 55 (1980), pp. 302-313. http://geodesic.mathdoc.fr/item/CMH_1980__55_139827/