Optimal with respect to accuracy algorithms for calculation of   multidimensional weakly singular integrals and applications to calculations   of capacitances of conductors of arbitrary shapes
  Cubature formulas, asymptotically optimal with respect to accuracy, are derived for calculating multidimensional weakly singular integrals. They are used for developing a universal code for calculating capacitances of conductors of arbitrary shapes. 
I. Boikov, A.G. Ramm