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Einstein notation for partial derivatives

The Einstein summation convention works will with partial derivative, and this case is widely used in particle physics.

Partial index partial derivative notation is the partial derivative notation commonly used in this context, as we want to do operations by index rather than by labels such as

x

,

y

,

z

.

This notation also allows us to have raised and lowered indices on the partial derivative symbol TODO how are they different?

 Table of contents 339
- Divergence in Einstein notation link nosplit Einstein notation for partial derivatives 100
- Laplacian in Einstein notation ( $\partial_{i} \partial^{i}$ ) link nosplit Einstein notation for partial derivatives 97
  - D'alembert operator in Einstein notation ( $\partial_{i} \partial^{i}$ ) link nosplit Laplacian in Einstein notation 58
    - Klein-Gordon equation in Einstein notation link nosplit D'alembert operator in Einstein notation 30

Ancestors

Incoming links

Partial index partial derivative notation