Jacobi identity for covariant derivatives proof.

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SUMMARY

The discussion centers on proving that covariant derivatives satisfy the Jacobi identity under a torsion-free connection. The identity is expressed as $$([\nabla_X,[\nabla_Y,\nabla_Z]] + [\nabla_Z,[\nabla_X,\nabla_Y]] +[\nabla_Y,[\nabla_Z,\nabla_X]])V = 0$$. The proof relies on the inherent properties of the commutator, demonstrating that the Jacobi identity for Lie brackets is universally applicable, independent of the operators being partial derivatives.

PREREQUISITES
  • Torsion-free connection in differential geometry
  • Understanding of covariant derivatives
  • Knowledge of Lie brackets and their properties
  • Familiarity with commutator operations
NEXT STEPS
  • Study the properties of torsion-free connections in differential geometry
  • Explore the role of covariant derivatives in Riemannian geometry
  • Investigate the implications of the Jacobi identity in Lie algebra theory
  • Learn about the applications of commutators in mathematical physics
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This discussion is beneficial for mathematicians, theoretical physicists, and students of differential geometry who are interested in the properties of covariant derivatives and their applications in various fields.

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Suppose we have a torsion free connection. Does anyone here know of a slick way to prove that covariant derivatives satisfy the Jacobi identity? I.e. that

$$([\nabla_X,[\nabla_Y,\nabla_Z]] + [\nabla_Z,[\nabla_X,\nabla_Y]] +[\nabla_Y,[\nabla_Z,\nabla_X]])V = 0$$

without going into coordinate basis.
 
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Never mind. It's simply due to the properties of the commutator. The jacobi identity for lie brackets does not depend on on it being partial derivative operators; It can be any kind of operators.
 

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