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Algebraic K-theory of spaces, concordance, and stable homotopy theory. (English) Zbl 0708.19001
Algebraic topology and algebraic K-theory, Proc. Conf., Princeton, NJ (USA), Ann. Math. Stud. 113, 392-417 (1987).
[For the entire collection see Zbl 0694.00022.]
Various splittings, up to homotopy, of the algebraic K-theory space A(X) of Waldhausen include $A(X)\simeq A^ S(X)\times Wh^{DIFF}(X)\text{ and } A^ S(X)\simeq \Omega^{\infty}S^{\infty}(X_+)\times \mu (X).$ The author uses a Kahn-Priddy type theorem to show $$\mu$$ (x) is trivial, and therefore that $A(X)\simeq \Omega^{\infty}S^{\infty}(X_+)\times Wh^{DIFF}(X).$ He also discusses several other proofs of the vanishing of $$\mu$$ (X).
Reviewer: M.R.Stein

##### MSC:
 19D10 Algebraic $$K$$-theory of spaces 55Q45 Stable homotopy of spheres