∬x2+y2<1Rm,n(α)⁡(x+ⅈ⁢y)⁢(x-ⅈ⁢y)m-j⁢(x+ⅈ⁢y)n-j⁢(1-x2-y2)α⁢ⅆ⁡x⁢ⅆ⁡y=0,