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d'Alembert operator (□)

Ciro Santilli (@cirosantilli, 37) Mathematics Area of mathematics Calculus Gradient, Divergence, Curl, and Laplacian Laplace operator
Updated 2025-07-16  0 By others on same topic  0 Discussions Create my own version
The laplace operator for Minkowski space.
Can be nicely written with Einstein notation as shown at: Section "d'Alembert operator in Einstein notation".

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  • d'Alembert operator in Einstein notation
  • Klein-Gordon equation in Einstein notation

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