partie suivante
Opérations cohomologiques secondaires (suite)
@article{SHC_1958-1959__11_2_A4_0, author = {Cartan, Henri}, title = {Op\'erations cohomologiques secondaires}, journal = {S\'eminaire Henri Cartan}, note = {talk:13}, pages = {1--20}, publisher = {Secr\'etariat math\'ematique}, volume = {11}, number = {2}, year = {1958-1959}, language = {fr}, url = {http://www.numdam.org/item/SHC_1958-1959__11_2_A4_0/} }
Cartan, Henri. Opérations cohomologiques secondaires. Séminaire Henri Cartan, Invariant de Hopf et opérations cohomologiques secondaires, Tome 11 (1958-1959) no. 2, Exposé no. 13, 20 p. http://www.numdam.org/item/SHC_1958-1959__11_2_A4_0/
[1] Non-existence of elements of Hopf-invariant one. - Princeton, 1958, multigraphié.
. -