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arXiv · 2405.08256

The cohomology of the classifying space of $PU(4)$

Feifei Fan
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Abstract

Let $BPU(n)$ be the classifying space of the projective unitary group $PU(n)$. We determine the integral cohomology ring of $BPU(4)$, and the Steenrod algebra structure of its mod $2$ cohomology.

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Feifei Fan. 2024-05-14. The cohomology of the classifying space of $PU(4)$. https://arxiv.org/abs/2405.08256

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