Figure 2From: The Dirichlet problem for the Laplace equation in supershaped annuli Boundary behavior along ∂ − A ( a ) and ∂ + A ( b ) of the partial sum U N (ϱ,ϑ) of order N=22 representing the solution of the Dirichlet problem for the Laplace equation in the supershaped annulus A described by the Gielis formula with parameters k x ± = k y ± =3 , d x − = d y − =3/4 , d x + = d y + =5/2 , ν x ± = ν y ± =12 , ν 0 ± =21 . Back to article page