The antilaplacian of 
with respect to 
is a function whose Laplacian with respect to 
equals 
. The antilaplacian is never unique.
Antilaplacian
See also
LaplacianExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Antilaplacian." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Antilaplacian.html