A rational torsion invariant

Ewing, John; Löffler, Peter; Pedersen, Erik Kjaer

doi:10.1090/S0002-9939-1988-0929012-0

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

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A rational torsion invariant
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by John Ewing, Peter Löffler and Erik Kjaer Pedersen PDF

Proc. Amer. Math. Soc. 102 (1988), 731-736 Request permission

Abstract:

We show that for spaces with rational cohomology an exterior algebra on odd dimensional generators, one can define a torsion invariant which is a rational number. This may be interpreted as an absolute version of the multiplicative Euler characteristic associated to a rational homotopy equivalence.

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