text: The vorticity of Stokes' flow is given by the following relation:
  Here  - are the Fourier coefficients of the vorticitys expansion by  polar angle  which are defined on ,  - radius of the cylinder, ,  are the direct and inverse special Webers transforms, and initial function for vorticity  satisfies no-slip boundary condition.
  Special Weber's transform has a non-trivial kernel, but from the no-slip condition follows orthogonality of the vorticity flow to the kernel.