Biharmonic Green domains in \(\mathbb{R}^n\)
The authors prove for the biharmonic operator \(\Delta^2\) similar results as being known for \(\Delta\). For example, if \(u\) is bounded biharmonic in \(0< |x|<1\) in \(\mathbb{R}^n\), \(n\geq 4\), then the point singularity at 0 is removable. Other interesting results are proved.
scientific article; zbMATH DE number 1247677
scientific article