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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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The trace of an action and the degree of a map
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by Daniel Henry Gottlieb PDF
Trans. Amer. Math. Soc. 293 (1986), 381-410 Request permission

Abstract:

Two integer invariants of a fibration are defined: the degree, which generalizes the usual notion, and the trace. These numbers represent the smallest transfers for integral homology which can be constructed for the fibrations. Since every action gives rise to a fibration, we have the trace of an action. A list of properties of this trace is developed. This list immediately gives, in a mechanical way, new proofs and generalizations of theorems of Borsuk-Ulam, P. A. Smith, Conner and Floyd, Bredon, W. Browder, and G. Carlsson.
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Additional Information
  • © Copyright 1986 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 293 (1986), 381-410
  • MSC: Primary 57S17; Secondary 55M20, 55M25, 55R10, 57S15
  • DOI: https://doi.org/10.1090/S0002-9947-1986-0814928-9
  • MathSciNet review: 814928