Volume 8, issue 1 (2004)

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ISSN (electronic): 1364-0380
ISSN (print): 1465-3060
Formal groups and stable homotopy of commutative rings

Stefan Schwede

Geometry & Topology 8 (2004) 335–412

arXiv: math.AT/0402372

Abstract

We explain a new relationship between formal group laws and ring spectra in stable homotopy theory. We study a ring spectrum denoted DB which depends on a commutative ring B and is closely related to the topological André–Quillen homology of B. We present an explicit construction which to every 1–dimensional and commutative formal group law F over B associates a morphism of ring spectra F: H DB from the Eilenberg–MacLane ring spectrum of the integers. We show that formal group laws account for all such ring spectrum maps, and we identify the space of ring spectrum maps between H and DB. That description involves formal group law data and the homotopy units of the ring spectrum DB.

Keywords
ring spectrum, formal group law, André–Quillen homology
Mathematical Subject Classification 2000
Primary: 55U35
Secondary: 14L05
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Publication
Received: 12 July 2003
Revised: 12 February 2004
Accepted: 30 January 2004
Published: 14 February 2004
Proposed: Bill Dwyer
Seconded: Thomas Goodwillie, Haynes Miller
Authors
Stefan Schwede
Mathematisches Institut
Universität Bonn
53115 Bonn
Germany