How to solve the exterior problem on a ball with radius $r$ in the 3d space? I have to found u such that:
$\Delta u = 0$ in $B(0,r)^C$
Thanks!
How to solve the exterior problem on a ball with radius $r$ in the 3d space? I have to found u such that:
$\Delta u = 0$ in $B(0,r)^C$
Thanks!