d'Alembert operator
English edit
Etymology edit
Named after Jean le Rond d'Alembert (1717–1783), a French mathematician, mechanician, physicist, philosopher, and music theorist.
Noun edit
d'Alembert operator (plural d'Alembert operators)
- (physics) A differential operator which may be expressed as ; it is the four-dimensional (Minkowski space) equivalent of the three-dimensional Laplace operator.
Usage notes edit
- It may be denoted as (in analogy with the symbol for the Laplacian) or as (in analogy with the symbol for the Laplacian).
- It may also be denoted as .