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5 votes
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Canonical reference for Chern characteristic classes

I'm a little uncertain about the definitions for Chern roots Chern classes Chern characters From perusing several discussions, I gather that if one correlates the nomenclature with that of ...
Tom Copeland's user avatar
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4 votes
1 answer
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Does a $G$-structure on $M$ automatically descend to a contact $G$-structure on $\mathbb{P}T^*M$?

If $M$ is a real smooth manifold of dimension $n+1$, by $D\in\mathbb{P}T^*M$ I mean a tangent hyperplane at some point of $M$. I denote by $b$ the canonical projection of the $(2n+1)$-dimensional ...
Giovanni Moreno's user avatar