Difference schemes on irregular grids for equations of mathematical physics with variable coefficients (Q1395327)

This paper is devoted to new difference schemes of second-order approximation on irregular grids with the use of conventional stencils for stationary and nonstationary problems. For multidimensional problems, efficient schemes of vector additive type are constructed. Numerical experiments carried out in this work indicate improved accuracy of new algorithms on coarse grids as compared to the known second-order accuracy schemes of the first approximation order.