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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.

 

On a nontrivial higher extension of representable abelian sheaves
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by Lawrence S. Breen PDF
Bull. Amer. Math. Soc. 75 (1969), 1249-1253
References
    1. M. Artin, Grothendieck topologies, Mimeographed notes, Harvard University, Cambridge, Mass., 1962.
  • Lawrence Breen, Extensions of abelian sheaves and Eilenberg-MacLane algebras, Invent. Math. 9 (1969/70), 15–44. MR 258842, DOI 10.1007/BF01389887
  • 3. M. Demazure and A. Grothendieck, Schémas en groupes, Mimeographed notes, Séminaire de Géométrie Algébrique, Inst. Hautes Études Sci., Paris, 1963.
  • Samuel Eilenberg and Saunders MacLane, Cohomology theory of Abelian groups and homotopy theory. II, Proc. Nat. Acad. Sci. U.S.A. 36 (1950), 657–663. MR 39252, DOI 10.1073/pnas.36.11.657
  • Samuel Eilenberg and Saunders MacLane, On the groups $H(\Pi ,n)$. III, Ann. of Math. (2) 60 (1954), 513–557. MR 65163, DOI 10.2307/1969849
  • Roger Godement, Topologie algébrique et théorie des faisceaux, Actualités Scientifiques et Industrielles [Current Scientific and Industrial Topics], No. 1252, Hermann, Paris, 1958 (French). Publ. Math. Univ. Strasbourg. No. 13. MR 0102797
  • 7. A. Grothendieck, Le groupe de Brauer. III, Mimeographed notes, Reprint., North-Holland, Amsterdam, 1969.
  • F. Oort, Commutative group schemes, Lecture Notes in Mathematics, vol. 15, Springer-Verlag, Berlin-New York, 1966. MR 0213365
  • Jean-Pierre Serre, Groupes algébriques et corps de classes, Publications de l’Institut de Mathématique de l’Université de Nancago, VII, Hermann, Paris, 1959 (French). MR 0103191
Additional Information
  • Journal: Bull. Amer. Math. Soc. 75 (1969), 1249-1253
  • DOI: https://doi.org/10.1090/S0002-9904-1969-12379-7
  • MathSciNet review: 0255550