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On the cooperation algebra of the connective Adams summand

Andrew Baker·Birgit Richter
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Abstract

The aim of this paper is to gain explicit information about the multiplicative structure of l_*l, where l is the connective Adams summand. Our approach differs from Kane's or Lellmann's because our main technical tool is the MU-based Kuenneth spectral sequence. We prove that the algebra structure on l_*l is inherited from the multiplication on a Koszul resolution of l_*BP.

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Andrew Baker, Birgit Richter. 2005-07-05. On the cooperation algebra of the connective Adams summand. https://arxiv.org/abs/math/0506455

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