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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.

 

Obstruction theories for smoothing manifolds and maps
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by Morris W. Hirsch PDF
Bull. Amer. Math. Soc. 69 (1963), 352-356
References
  • J. F. Adams, Vector fields on spheres, Ann. of Math. (2) 75 (1962), 603–632. MR 139178, DOI 10.2307/1970213
  • Morris W. Hirsch, On combinatorial submanifolds of differentiable manifolds, Comment. Math. Helv. 36 (1961), 103–111. MR 133833, DOI 10.1007/BF02566895
    • 3. J. Milnor, Microbundles and differentiable structures, Princeton University, 1961 (mimeographed).
  • John Milnor, Two complexes which are homeomorphic but combinatorially distinct, Ann. of Math. (2) 74 (1961), 575–590. MR 133127, DOI 10.2307/1970299
  • James Munkres, Obstructions to the smoothing of piecewise-differentiable homeomorphisms, Ann. of Math. (2) 72 (1960), 521–554. MR 121804, DOI 10.2307/1970228
  • James Munkres, Differentiable isotopies on the $2$-sphere, Michigan Math. J. 7 (1960), 193–197. MR 144354
    • 7. J. Munkres, Obstructions to extending diffeomorphisms, Princeton University, 1960 (mimeographed).
  • R. Thom, Des variétés triangulées aux variétés différentiables, Proc. Internat. Congress Math. 1958., Cambridge Univ. Press, New York, 1960, pp. 248–255 (French). MR 0121806
Additional Information
  • Journal: Bull. Amer. Math. Soc. 69 (1963), 352-356
  • DOI: https://doi.org/10.1090/S0002-9904-1963-10917-9
  • MathSciNet review: 0149493