Bilateral computational schemes for solving of nonlinear differential equations with the assessment of principal error term

R.Ya. Pelekh, Y.Y. Luchko
2011 Nauka ta Progres Transportu  
The two-side methods of the second order of accuracy are constructed. The formulas give an opportunity to receive upper and lover approximation at each point to the exact solution and define the value of the main error without referring to the right part of differential equation.
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