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My understanding of this topic is that the Laplacian operator can be applied to both scalar fields as well as vector fields. The formula

$$\nabla^2 \equiv \frac{\partial^2 }{\partial x^2}+\frac{\partial^2 }{\partial y^2}+\frac{\partial^2 }{\partial z^2}$$ works for either a scalar or a vector.

1) Is it true that Laplacian can be applied to vectors(which I think is a yes)?

2) If yes,then just as we call the Laplacian of a scalar as "Divergence of a gradient",can we also call Laplacian of a vector field as "Gradient of Divergence"?`

(I am new to text editors so please if someone could edit it correctly)

PS:I did some research online but it rather confuses me as to whether or not Laplacian is applicable to a vector.

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    $\begingroup$ Have you checked the wiki article? $\endgroup$ – ares Sep 11 at 11:30
  • $\begingroup$ @ares thanks,doubt is cleared.Not grad of divergence only but with an extra term. $\endgroup$ – DonGod Sep 11 at 11:56

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