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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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On the proper Steenrod homotopy groups, and proper embeddings of planes into $3$-manifolds
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by Matthew G. Brin and T. L. Thickstun PDF
Trans. Amer. Math. Soc. 289 (1985), 737-755 Request permission

Abstract:

Standard algebraic invariants of proper homotopy type are discussed. These do not naturally fit into long exact sequences. Groups of proper homotopy classes of proper maps of Euclidean spaces and open annuli which do naturally form a long exact sequence are defined, and a diagram relating these groups to the standard algebraic invariants of proper homotopy type is given. The structures defined are used to compare several notions of essentiality for proper maps. Some results and examples are given for proper maps of spaces into manifolds of dimension $2$ and $3$. These results are used to add information to a theorem of Brown and Feustel about properly embedding planes in $3$-manifolds.
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Additional Information
  • © Copyright 1985 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 289 (1985), 737-755
  • MSC: Primary 57N65; Secondary 57N10
  • DOI: https://doi.org/10.1090/S0002-9947-1985-0784012-0
  • MathSciNet review: 784012