## 2007.68: Universal homotopy associative, homotopy commutative H-spaces and the EHP spectral sequences

2007.68:
Jelena Grbić
(2006)
*Universal homotopy associative, homotopy commutative H-spaces and the EHP spectral sequences.*
Mathematical Proceedings of the Cambridge Philosophical Society, 140 (3).
pp. 377-400.
ISSN 0305-0041

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DOI: 10.1017/S0305004106009182

## Abstract

Assume that all spaces and maps are localised at a fixed prime $p$. We study the possibility of generating a universal space $U(X)$ from a space $X$ which is universal in the category of homotopy associative, homotopy commutative $H$-spaces in the sense that any map $f\colon X\to Y$ to a homotopy associative, homotopy commutative $H$-space extends to a uniquely determined $H$-map $\overline{f}\colon U(X)\to Y$. Developing a method for recognising certain universal spaces, we show the existence of the universal space $F_2(n)$ of a certain three-cell complex $L$. Using this specific example, we derive some consequences for the calculation of the unstable homotopy groups of spheres, namely, we obtain a formula for the $d_1$-differential of the EHP-spectral sequence valid in a certain range.

Item Type: | Article |
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Subjects: | MSC 2000 > 55 Algebraic topology |

MIMS number: | 2007.68 |

Deposited By: | Miss Louise Stait |

Deposited On: | 06 April 2007 |

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