Mathematics – Algebraic Topology
Scientific paper
2012-04-02
Mathematics
Algebraic Topology
7 pages
Scientific paper
We give a lower bound of the cochain type level of the diagonal map on the
classifying space of a Lie group by using the ghostness of a shriek map.
Moreover, in a derived category, we discuss the triviality of the shriek map
which induces the loop product on the classifying space of a Lie group.
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