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Merge pull request #4 from brambrongers/patch-6
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Update appendices.tex
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mseri authored Jan 9, 2022
2 parents 6ea2e5e + af709bc commit 15c0cc1
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3 changes: 2 additions & 1 deletion appendices.tex
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Expand Up @@ -329,8 +329,9 @@ \section{The Exterior Covariant Derivative}
\end{exercise}
Any connection $\nabla$ on $E$ induces a connection $\nabla^\text{End}$ on the vector bundle $\text{End}(E)$. One way to see this is as follows. Given a connection $\nabla$ on $E$, we can define the dual connection $\nabla^*$ on $E^*$. To see this, consider the natural pairing $E\times E^*\to C^\infty(M)$ given by $(s,\theta)\mapsto\theta(s):=\langle s,\theta\rangle$.
\begin{exercise}
Verify that the connection $\nabla^*$ on $E^*$ defined by $\langle s,\nabla^*\theta\rangle=\langle\nabla s,\theta\rangle$ indeed defines a connection. Verify explicitly that it is given by the formula:
Verify that the connection $\nabla^*$ on $E^*$ defined by
$$(\nabla^*\theta)(s)=d(\theta(s))-\theta(\nabla s)$$
for $s\in\Gamma(E)$ is indeed a connection.
\end{exercise}
\begin{proposition}
Let $(E,\nabla)$ and $(E',\nabla')$ be vector bundles with connections. Then these connections combine to give a connection $\nabla\otimes\nabla'$ on $E\otimes E'$, defined by
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