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Results tagged with differential-topology
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user 111897
The study of differentiable manifolds and differentiable maps. One fundamental problem is that of classifying manifolds up to diffeomorphism. Differential topology is what Poincaré understood as topology or “analysis situs”.
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Chern class of roots of the canonical bundle
In general you have $c_1(L^{\otimes n}) = n c_1(L)$, because $c_1$ is a group homomorphism $c_1: \operatorname{Pic}(X) \to H^2(X,\mathbb Z)$. So if $L^{\otimes 2} = K$, then $c_1(L) = \frac 1 2 c_1(K) …
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