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Memoirs of the American Mathematical Society
Memoirs of the American Mathematical Society
ISSN 1947-6221(e) ISSN 0065-9266(p)

     

The Goodwillie tower and the EHP sequence


Author: Mark Behrens
Journal: Memoirs of the AMS
MSC (2010): Primary 55Q40; Secondary 55Q15, 55Q25, 55S12
Posted: November 21, 2011
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Abstract: We study the interaction between the EHP sequence and the Goodwillie tower of the identity evaluated at spheres at the prime $ 2$. Both give rise to spectral sequences (the EHP spectral sequence and the Goodwillie spectral sequence, respectively) which compute the unstable homotopy groups of spheres. We relate the Goodwillie filtration to the $ P$ map, and the Goodwillie differentials to the $ H$ map. Furthermore, we study an iterated Atiyah-Hirzebruch spectral sequence approach to the homotopy of the layers of the Goodwillie tower of the identity on spheres. We show that differentials in these spectral sequences give rise to differentials in the EHP spectral sequence. We use our theory to recompute the $ 2$-primary unstable stems through the Toda range (up to the $ 19$-stem). We also study the homological behavior of the interaction between the EHP sequence and the Goodwillie tower of the identity. This homological analysis involves the introduction of Dyer-Lashof-like operations associated to M. Ching's operad structure on the derivatives of the identity. These operations act on the mod $ 2$ stable homology of the Goodwillie layers of any functor from spaces to spaces.


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Additional Information

Mark Behrens
Affiliation: Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139
Email: mbehrens@math.mit.edu

DOI: http://dx.doi.org/10.1090/S0065-9266-2011-00645-3
PII: S 0065-9266(2011)00645-3
Keywords: Unstable homotopy groups of spheres, Goodwillie calculus, EHP sequence, Dyer-Lashof operations
Received by editor(s): September 27, 2010,
Received by editor(s) in revised form: February 27, 2011
Posted: November 21, 2011
Additional Notes: The author was partially supported by the NSF, a grant from the Sloan foundation, and an NEC fund
Affiliation at time of publication: Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139; email: mbehrens@math.mit.edu
Article copyright: © Copyright 2011 American Mathematical Society




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