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The Hopf ring of Morava K-theory. (English) Zbl 0564.55004

Let K(n)\({}_*=\{\underline{K(n)}_ i\}\) be the \(\Omega\)- spectrum representing the n-th Morava K-theory for a prime p. Let E be a multiplicative BP module spectrum. The author shows that \(E_*\underline{K(n)}_*\) is a Hopf ring, i.e., each \(E_*\underline{K(n)}_ i\) is a (bi)commutative Hopf algebra with conjugation and product. Using the techniques in [D. C. Ravenel and the author, J. Pure Appl. Algebra 9, 241-280 (1977; Zbl 0373.57020); Am. J. Math. 102, 691-748 (1980; Zbl 0466.55007) and the author, Reg. Conf. Ser. Math. 48 (1982; Zbl 0518.55001)], and the bar spectral sequence with Hopf rings from [R. W. Thomason and the author, Q. J. Math., Oxf. II. Ser. 31, 507-511 (1980; Zbl 0449.55018)], he computes \(H_*\underline{K(n)}_*\). Then he shows that the Atiyah-Hirzebruch spectral sequence collapses, solves all extension problems, and obtains \(E_*\underline{K(n)}_*\).
Reviewer: T.Kobayashi

MSC:

55N15 Topological \(K\)-theory
55S25 \(K\)-theory operations and generalized cohomology operations in algebraic topology
55T25 Generalized cohomology and spectral sequences in algebraic topology
55N20 Generalized (extraordinary) homology and cohomology theories in algebraic topology
55P42 Stable homotopy theory, spectra
Full Text: DOI

References:

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