856 citations
- University of CopenhagenDK6 papers
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4 papers · 1 filter
An alternative approach to homotopy operations
Marcel Bokstedt, Iver Ottosen
We give a particular choice of the higher Eilenberg-MacLane maps by a recursive formula.This choice leads to a simple description of the homotopy operations for simplicial Z/2-alge…
A spectral sequence for string cohomology
Marcel Bokstedt, Iver Ottosen
Let X be a 1-connected space with free loop space LX. We introduce two spectral sequences converging towards H^*(LX;Z/p) and H^*((LX)_hT;Z/p). The E2-terms are certain non Abelian…
Mod p homology of the stable mapping class group
Soren Galatius
We calculate the homology of the mapping class group in the stable range. The calculation is based on Madsen and Weiss' proof of the "Generalised Mumford Conjecture".
A finite loop space not rationally equivalent to a compact Lie group
Kasper K. S. Andersen, Tilman Bauer, Jesper Grodal +1
We construct a connected finite loop space of rank 66 and dimension 1254 whose rational cohomology is not isomorphic as a graded vector space to the rational cohomology of any comp…