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Abstract In the present paper the difference schemes of high order accuracy for two‐dimensional equations of mathematical physics in an arbitrary domain are constructed. The computational domain is covered by a uniform rectangular grid. The second order accuracy of local approximation by spatial variables is achieved near‐boundary nodes. No increase of a standard grid scheme template is required. A priori estimates of the stability are obtained.

DIFFERENCE SCHEMES OF HIGH ORDER ACCURACY FOR MATHEMATICAL PHYSICS PROBLEMS IN ARBITRARY DOMAINS