How to Obtain A or U from Inverse Nabla Functions?

TheDestroyer
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How can I get A or U from those equations?

B=div(A)

B=Lap(A)

V=Lap(U)

A,B Vector fields, U,V Scalar functions

And thanks,
 
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The first B (from the first eq.) cannot be a vector field.

U may want to study Helmholtz theorem...Plus the general theory of elliptic second order PDE-s...

Daniel.
 
yooooo, sorry ! ofcourse not a vector field! lol dot product :P
Can you guide me to a websites for them? best of them?

Thanks
 

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