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Ehresmann connections; covariant derivatives; connections on vector bundles, principal bundles, ∞-bundles, submersions, bundle gerbes; holonomy and higher holonomy; parallel transport; torsion; curvature. See also the tags [principal-bundles], [vector-bundles], [gerbes], [curvature], [geodesics], [characteristic-classes], [torsion].

2 votes
1 answer
152 views

Splitting of higher order jet sequence

Let $X$ be a smooth variety. Because $\mathcal{O}_X$ admits a canonical connection $\mathrm{d} : \mathcal{O}_X \to \Omega_X$ the sequence, $$ 0 \to \Omega_X \to J^1(\mathcal{O}_X) \to \mathcal{O}_X \t …
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6 votes
1 answer
462 views

What exactly is the relationship between an Ehresmann connection and splitting of the jet se...

In algebraic geometry, I am familiar with the equivalence between connections on a locally free sheaf $\mathcal{E}$ and splitting of the sequence $$ 0 \to \Omega_X^1 \otimes \mathcal{E} \to J^1(\mathcal …
Ben C's user avatar
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10 votes
2 answers
2k views

When do flat holomorphic connections exist?

I know from How many flat connections has a line bundle in algebraic geometry? …
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