by

Ciro Santilli (@cirosantilli, 34)

Laplace operator ( $Δ$ , $\nabla^{2}$ )

Can be denoted either by:

the upper case Greek letter delta
nabla symbol squared

Our default symbol is going to be:

\nabla^{2}

Table of contents
- D'alembert operator Laplace operator

D'alembert operator ( $□$ )

The laplace operator for Minkowski space.

Can be nicely written with Einstein notation as shown at: Section "D'alembert operator in Einstein notation (

\partial_{i} \partial^{i}

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cirosantilli/laplacian

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