Про числове рішення змішаної крайової задачі для еліптичного рівняння зі змінними коефіцієнтами у подвійно пов"язаних плоских областях.
We consider a numerical solution of a mixed boundary value problem for the second-order elliptic equation with variable coecients in a doubly connected domain. A solution of the problem is represented as a sum of potentials with unknown densities and Levi function as a kernel. Substituting the solution representation in the main equation and two boundary
conditions we obtain a system of boundary-domain integral equations. The change of variables leads to the parameterised system which is being transformed in a system of linear algebraic equations after quadratures application and collocation of the approximating equations at appropriate points. Some numerical results are provided at the end.
