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Illinois Journal of Mathematics
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On realizing Nakaoka's coincidence point transfer as an $S$-map

On realizing Nakaoka's coincidence point transfer as an S-map
Authors: Gottlieb, Daniel H.;

On realizing Nakaoka's coincidence point transfer as an $S$-map

Abstract

Let \(p: E\to B\) be a fiber bundle with compact manifold fiber. The author [J. Differ. Geom. 10, 39-48 (1975; Zbl 0294.55009)] defined a ''transfer'' \(\tau\) : \(H^*(E)\to H^*(B)\) in singular cohomology theory such that \(\tau p^*\) is multiplication by the Euler characteristic of the fiber. \textit{J. C. Becker} and the author [Topology 14, 1-12 (1975; Zbl 0306.55017)] proved that there is a stable map which induces \(\tau\), hence such a transfer exists in every cohomology theory. Not all transfers can be so induced. Given another fiber bundle p': \(E\to B\) over the same base space with fiber a manifold of the same dimension, and given maps f, \(g: E\to E'\) covering the identity map of B, \textit{M. Nakaoka} [J. Math. Soc. Japan 32, 751-779 (1980; Zbl 0447.55001)] defined a transfer in singular cohomology \(\tau\) : \(H^*(E)\to H^*(B)\) such that \(\tau p^*\) is multiplication by the Lefschetz coincidence index of the restrictions of f and g to a fiber. The result of the present paper is that, under reasonable hypotheses, Nakaoka's transfer is induced by a stable map.

Related Organizations
Keywords

Transfer for fiber spaces and bundles in algebraic topology, Fixed points and coincidences in algebraic topology, 57R99, Thom isomorphism, 55R12, Fiber bundles in algebraic topology, Lefschetz coincidence index, stable map, transfer, fiber bundle

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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