Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-28T13:32:04.209Z Has data issue: false hasContentIssue false

Liftings of formal groups and the Artinian completion of BP

Published online by Cambridge University Press:  24 October 2008

Andrew Baker
Affiliation:
Manchester University, Manchester M13 9PL, England
Urs Würgler
Affiliation:
Universität Bern, Bern, CH3012, Switzerland

Extract

Let BP denote the localization at υn, of the Brown-Peterson spectrum (associated to the prime p). There is a related ring spectrum E(n) with homotopy ring

(as a quotient ring of in fact the cohomology theory E(n)*( ) is determined via a Conner-Floyd type isomorphism from on finite complexes, and moreover E(n) and BP are in the same Bousfield class (see [2, 14]). Although it is known (essentially from [17]) that BP cannot be a product of suspensions of E(n) in a multiplicative sense, D. Ravenel conjectured that such a splitting might occur after suitable completion of these spectra (see the introduction to [14]). This question was the original motivation of the present paper; however in proving Ravenel's conjecture we were naturally led to the consideration of some fundamental results in the theory of liftings of formal group laws and ‘change of ring’ results for Ext groups occurring in connection with the work of [10, 11, 12].

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Adams, J. F.. Stable Homotapy and Generalised Homotopy (University of Chicago Press, 1974).Google Scholar
[2]Bousfield, A. K.. The localization of spectra with respect to homology. Topology 18 (1979), 257287.CrossRefGoogle Scholar
[3]Hopkins, M. J.. Global methods in homotopy theory. In Homotopy Theory, London Math. Soc. Lecture Note Ser. no. 117 (Cambridge University Press, 1987), PP. 7396.Google Scholar
[4]Jensen, C. U.. Les Foncteurs Dérivés de et leurs Applications en Théorie des Modules. Lecture Notes in Math. vol. 254 (Springer-Verlag, 1972).Google Scholar
[5]Kuhn, N. J.. Morava K-theories and infinite loop spaces. In Proceedings of the Arcata Conference (1986).Google Scholar
[6]Lanoweber, P. S.. BP*(BP) and typical formal groups. Osaka J. Math. 12 (1975), 357363.Google Scholar
[7]Landweber, P.. Homological properties of comodules over MU*MU and BP*BP. Amer. J. Math. 98 (1976), 591610.Google Scholar
[8]Lubin, J. and Tate, J.. Formal moduli for one parameter formal Lie groups. Bull. Soc. Math. France 94 (1966), 4960.CrossRefGoogle Scholar
[9]Matsumura, H.. Commutative Algebra (W. A. Benjamin, 1970).Google Scholar
[10]Morava, J.. Noetherian localisations of categories of cobordism comodules. Ann. of Math. (2) 121 (1985), 139.Google Scholar
[11]Miller, H. R. and Ravenel, D. C.. Morava stabilizer algebras and the localisation of Novikov's E 2-term. Duke Math. J. 44 (1977), 433447.CrossRefGoogle Scholar
[12]Miller, M. R., Ravenel, D. C. and Wilson, W. S.. Periodic phenomena in the Adams–Novikov spectral sequence. Ann. of Math. (2) 106 (1977), 469516.Google Scholar
[13]Ravenel, D. C.. Complex Cobordism and Stable Homotopy Groups of Spheres (Academic Press, 1986).Google Scholar
[14]Ravenel, D. C.. Localisation with respect to certain periodic cohomology theories. Amer. J. Math. 106 (1984), 351414.CrossRefGoogle Scholar
[15]Ravenel, D. C.. A geometric realisation of the chromatic resolution. In Proceedings of the J. C. Moore Conference (Princeton University Press, 1983).Google Scholar
[16]Sullivan, D.. Genetics of homotopy theory. Ann. of Math. (2) 100 (1974), 179.Google Scholar
[17]Würgler, U.. A splitting for certain cohomology theories associated to BP*(–). Manuscripta Math. 29(1979), 93111.Google Scholar
[18]Yosimura, Z.. On cohomology theories of infinite complexes. Publ. Res. Inst. Math. Sci. 8 (19721973), 295310.CrossRefGoogle Scholar