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Bulletin of the American Mathematical Society

The Bulletin publishes expository articles on contemporary mathematical research, written in a way that gives insight to mathematicians who may not be experts in the particular topic. The Bulletin also publishes reviews of selected books in mathematics and short articles in the Mathematical Perspectives section, both by invitation only.

ISSN 1088-9485 (online) ISSN 0273-0979 (print)

The 2020 MCQ for Bulletin of the American Mathematical Society is 0.84.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

A nonabelian two-dimensional cohomology for associative algebras
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by Paul Dedecker and Abraham S.-T. Lue PDF
Bull. Amer. Math. Soc. 72 (1966), 1044-1050
References
  • Paul Dedecker, Le foncteur $\textrm {Hom}$ non abélien. Notion de poulpe, C. R. Acad. Sci. Paris 257 (1963), 2384–2387 (French). MR 155878
    • 2. P. Dedecker, Les fondeurs Ext, H, C. R. Acad. Sci. Paris 258 (1964), 4891-4894. Premier dérivé du foncteur Hom non abélien, 259 (1964), 2054-2057. 3. P. Dedecker, Cohomologie non abélienne, (Seminar notes), Faculté des Sciences de Lille (1965).
  • Abraham S.-T. Lue, Non-abeliian cohomology of associative algebras, Quart. J. Math. Oxford Ser. (2) 19 (1968), 159–180. MR 248199, DOI 10.1093/qmath/19.1.159
  • Saunders Mac Lane, Extensions and obstructions for rings, Illinois J. Math. 2 (1958), 316–345. MR 98773
  • Paul Dedecker and Armin Frei, Les relations d’equivalence des morphismes de la suite exacte de $2$-cohomologie non abélienne, C. R. Acad. Sci. Paris Sér. A-B 262 (1966), A1298–A1301 (French). MR 204483
Additional Information
  • Journal: Bull. Amer. Math. Soc. 72 (1966), 1044-1050
  • DOI: https://doi.org/10.1090/S0002-9904-1966-11639-7
  • MathSciNet review: 0210754